Side by Side Comparison of: Ivation vs AcuRite vs Pure Enrichment vs Powilling vs DampRid

After being partially flooded by Hurricane Harvey I wanted to try a dehumidifier. Since the storm passed and flood waters receded we have had unusually low humidity. This unit still removes more moisture and I will use it as long as it keeps working. It will probably end up in my gun safe where I'm pretty sure it will be very effective.

Wow. This little machine kicks butt. I might need another. I won't hesitate to purchase again.I purchased and returned 2 other dehumidifies before I purchased this one. It's a keeper. Works better than expected. My area is 240 cu.ft.1 gipe I have is I wish it remembered the last setting after being powered down. Defaults to 45% No biggie. Gauge seems accurate.

The unit is small but it has worked well in getting the moisture out of the air in a 14 x 13 room. It is easy to empty and it is silent.

This Dehumidifier is in my basement that I just remodeled and had carpeted. I noticed a dampness and that prompted my purchase, in the first week I dumped almost a half a bucket of water out of its trap. And there is a noticeable difference in the moisture level. Thanks again Amazon for yet another winner!

My basement had a mildewy smell because of water that had long since been absorbed into the carpet and walls. I bought a big air filter with UV and everything but still couldn't shake the smell or the feeling that mold spores were flying around about to make everyone who dared to tread down there sick. I bought the Ivation IVADM45 along with some DampRid. I really like the IVADM45 because I know its working because I can actually see and dump out the water it's pulling out of the air. It was exactly what I needed to make my basement livable again. I don't know what magical fairies are inside this thing making it work, but it works like magic and I'm happy not knowing how it does it as long as it keeps doing it.

Anyone complaining about the noise of this unit has NEVER tried sleeping with a regular unit. This IS whisper quiet regardless of anyone's review. Does it draw as much as a traditional unit? No,,, but it works great in harmony with traditional one. I use old one in stairwell... to have this in an office, bedroom or waiting area is SO FAR SUPERIOR to traditional unit; works as intended, very pleasant. It is 100% recommended to enhance a traditional unit for areas you don't want noise and bulk.

This has been great for monitoring my reptile enclosure/vivarium (IJ Blue Tongue Skink). My lizard knocked it into her water dish and it sat fully submerged for at least several hours. When I saw and pulled it out, the screen was blank and water was pouring out of all the holes. I took out the battery and let it dry out for 5 days. Popped the battery in, and it works! I now have it wedged so she can't move it around. (I used another gauge and a temp thermal gun to verify it's still giving accurate readings.) It's also helpful to know the highs and lows for the past 24 hours, since sometimes it can really vary. This has helped me maintain a more consistent level of humidity. Would recommend for anyone needing to monitor tropical/humid reptiles or amphibians.

works great - very accurate and rugged tooI keep one in a grow tent and another clipped to the side of some er home grown herb bucket so I know how the plant is as well as the tent as a whole. dropped on the floor, dropped in mud and they still work great.I think I've just been lucky with my misuse but my special orchids bloom like crazy because these guys let me know exactly how my micro environment is doing.too big to use in 1qt canning jars tho.

I have tested this device against my other gauges and it has proven accurate, it is easily read, the memory of highs and lows are helpful when you're monitoring a room that may have issues or maintaining a walk in humidor or a room you want particularly dry like a server room.Another bonus is that the device comes with a clip that also has a magnet adhered to the back. I have mine stuck to a filing cabinet in a room I need to stay consistently dry.The price was great, have I any further need for a room hygrometer I will certainly be buying this one.

Good product bought 4 all were the same, for $10 great deal, a very good humidistat would cost $100. I compared all 4 together after 2 hours they were all the same, even though two are off by one it is more like .2 after the photo I started to move one when I came back they were all reading the same.

We purchased this AcuRite monitor to see how much of a temperate difference we see in our master bedroom (which has poor insulation) and the rest of the house. During the first week I hung this unit next to our house thermometer and found it to be constantly one degree lower than our house reading. I have not way of knowing which one is more accurate, although I did notice that they moved in sync with daily fluctuations. It was very nice seeing what the daily fluctuations were, especially as we have to dogs and could not monitor what the house temperature fluctuations were while we were gone to work.Subsequently, we moved the monitor to our master bedroom. Curing the colder spring months we found out master bedroom about 2-3 degrees cooler than the rest of the house. It was reassuring to know that the difference was not greater. During summer months, we have noticed a 3-4 degree increase in temperature in the same room (compared to the listed temperature on our house thermometer. Again, during summer, the temperature move in sync. We do not use the AC much, so were see enough temperature variations to make this comment worthwhile.

I purchased two of these as I wanted something digital and I liked that it recorded the highs and lows for each: humidity and temperature. Right out of the package they both read identical humidity and temperature which was great. I then brought them to my work and put them in a stabilty chamber to test against a calibrated expensive humidty guage at 63.3% RH and 25.x C. Both units measured within a single percent of RH and ready 25 C. I then calibrated the units in a nitrogen filled instrument with a calibrated unit. The calibrated unit read 0.0 % RH while both units read 16. I figured out that these units DO NOT work below 20 % RH and instead display 16 %. I then tested them in open rooms compared to a calibrated unit at 20-30% RH and these babies read within a single unit of % RH and about 0.5 degrees C. I have no way of calibrating them higher and not sure how high they will read accurately but I'm curious to see what they'll read outside in the rain. Otherwise they are great units for the price.

The operating instructions are easy to follow. The moisture extraction is relatively slow; but the unit uses much less power than the larger units. I like the fact that the humidity set-point can be set on the unit so it does not necessarily run continuously.

Nice design, relatively quiet. Works pretty well for the most part. I use it in my basement but it's not really meant for a large area, just a small room. Has auto shutoff feature when water tank is full which means you can just leave it on. Has a humidity setting, but the humidity monitor seems to be slightly off, not a big deal though.

The higher the humidity level the better this unit works. When you get to about 55% humidity it basically stops working. If you're trying for "not a swamp" it's dandy. If you want "dry as dust" get a unit with a compressor.

Bought this for a motorhome, but it really does not pull that much moisture from the air. 4 stars because I could have foreseen this (I'm an engineer), and I'll still use it as larger units (that pull more moisture) are *way* larger and make much more noise. I don't blame Ivation for this, although I think the room size is probably optimistic.

This is a sturdy, attractive, and low noise unit that works well. My only regret is that it hardly clears the moisture from our small living room, despite having it on for hours. We don't live in an especially humid environment either, but in the winter the windows aren't open due to the cold so moisture can collect overnight on the windows. The description of how big a room it is suitable for was vague and confusing. It described the area in cubic feet, not square feet, so I thought it would cover a larger room that it was set up to do. The one step up larger model wasn't available, either. So, I wouldn't call this a powerful mid size, unless you are thinking about large closets or bathrooms.

I bought this unit for my bedroom, only 200sq feet, but I live 2 city blocks from the ocean so it gets pretty humid during the summer months. I use to have a traditional type of dehumidifier with a compressor, Delonghi. The traditional compressor dehumidifier sucks up moisture really fast compare to this one, but they also suck up electricity and noisy and heavey. This machine is 1/3 of the price of my old dehumidifier, less than 1/10 of the noise, less than a third of the size, and without a compressor I am sure electricity is less too. I like the humidity sensor so it turns off by itself. It does not reduce moisture fast, but its good enough for what I need.

Needed something inexpensive to monitor partially finished, below grade basement. Have a dehumidifier set to run automatically in the space but no way to ensure it was operating +/- to setting. After two weeks of acclimation, the two still don't match but they are w/in ~ 5% of each other. That's all I needed to have confidence I wasn't allowing mold, etc. Can't be sure which is more accurate but this gets me in the ballpark. If you need pinpoint accuracy this may not be the unit for you.

Seems accurate, works and functions fine. I would recommend the ThermoPro TP50 over this unit though because i like its design better, its more compact, cheaper, and comes with a battery. This unit is also unable to reset the ranges whenever you want unlike the ThermoPro TP50 that can do that.

Considering the low price, this is a great little device. When I first got it, about 60 days ago, I was extremely disappointed at the inaccuracy of it. Comparing it to other devices, the humidity and the temperature were each in error by close to 10 percent. However, I discovered that it was because I used a NiMH rechargeable battery, which is lower voltage than an alkaline battery (1.5v for alkaline, 1.25 for the NiMH I used). After 42 days, the device shut itself off completely; no "low battery" warning of any kind. When I replaced the battery with an alkaline AA cell, the temperature and humidity readings matched other devices closely. I experimented, trying different NiMH batteries, making sure they were fully charged. In each test, the temperature and humidity readings were off by about 10 percent when using a NiMH rechargeable battery, and the readings were accurate when using an alkaline battery. I would give this device 5 stars if the seller gave some information about the sensitivity to voltage; but they do not (as of December 2015).Another experiment I conducted with this device was to place it in a plastic bag with a small packet of desiccant in the bag. The humidity reading did in fact drop quickly, and matched the readings of tests I conducted with other devices. When I buy herbs, I place them in double-zip bags with desiccant to help preserve freshness and to prevent mold. But I always wondered how much difference the desiccant really made, and how many packets would be required to significantly lower the humidity inside the bag. It turns out that one 10 gram packet inside a 1-quart zip-lock bag lowers the internal humidity to below 10 percent. The desiccant packets can be dried periodically in a low-temperature convection oven, and reused. The AcuRite device is small enough, and easy to read while inside the bag, so is helpful to me for gaining some data to help keep my herbs fresher.

UPDATE - This helped me with adjusting the temp of my fridge (I do NOT recommend GE, check consumer reports at the library). Also adding a few full gallon jugs of water to the back of the fridge helped lower the temp swings that happen when you open the door (AcuRite keeps track of the lowest/highest temp for maybe 24 hours). Read up but it's probably not good to put easily spoiled items in the door and maybe the top shelf (depending on temp settings, fridge quality, etc)Original -I'll update later. For now it works fine after surviving some USPS brutality (you'll need an AA battery). When you turn it on it will SLOWLY start lowering the # on the temp display if your house is cool, I just assume it's taking its time to be more accurate. The display temp eventually matched my home's digital A/C temp setting. I learned that my A/C lowers the humidity a little too much. I hear plants can help that a bit, I recommend spider plants and snake plants for better home air quality, not sure about their effect on humidity though.

Very nice little hygrometer.With any hygrometer you should check the calibration if accuracy is a concern. Many can be off by 3-5% - not critical in some cases, but definitely critical in precision acoustic instrument building as I do.Checking calibration is simple - I follow the directions from http://www.hermitcrabassociation.com/pages/calibrate.html" A simple, easy to do at home means of calibrating hygrometers uses standard salt and a sealed container. Table salt, when used properly, will maintain an exact 75% humidity in a perfectly sealed environment. So, to do this, you'll need three items. First, obtain an airtight container such as a see-through tub with a tight fitting snap-on lid (the kind usually found in most kitchens). Alternately, a heavy-duty zip-lock bag will do. Second, you'll need about a teaspoon of salt. Third, any small, shallow open container is needed (to hold the salt in) such as a screw cap from a plastic bottle.Place the salt in its small container and add a few drops of water to moisten it. Don't dissolve it yet. With just a few drops of water, you'll get what you need, which is damp salt. Next, carefully place the salt in its small container, along with your hygrometer, into the airtight container. Please do not get any moistened salt on the gauge. Also, check to see that the starting point (current reading) is anywhere in the 40% to 80% range.Seal the container tightly. Note: if you have any doubt as to whether or not it is a perfectly sealed environment, double-it-up by putting it in a second container, or into a second baggie. Do not try to remove the remaining air trapped inside. Now, wait for at least 5 or 6 hours until the environment has stabilized. Do not open the container. Read the gauge's humidity % level. It should be exactly 75%. If it is not, note the deviation as being the amount your hygrometer is out of calibration. If for example, it reads 68%, the gauge is 7% low. If on the other hand it reads 80%, the gauge is 5% high"

Cheap, works like expected.Has fridge magnet on the back, belt clip, and desk stand.Reads humidity very clearly, and temperature.Only star off, is no 'reset' button.You'd have to take out the battery for a second, to get the numbers to reset (highs and lows in humidity and temps).It also has a Celcius/Farenheit button in the back, to switch temperature readout.It also has an indicator (little house on the top right) to indicate if humidity is too much or too low.50% humidity is ok.Lower, and some people get a dry throat feeling.Higher than 90 and the air feels, and smells moist.The readout frequency updates about every 15 seconds. When I blew in the vents, it took the device about 1 minute to come to a stop (in rising humidity), so it doesn't work immediately.Can't tell how long the battery will last, and a last con would be that it has no backlight, and no alarm/timer built in (you'd think for a small device like this, they would incorporate a clock, as well as a weather predictor?).

I bought this because my apartment gets humid in the summer. It worked great for the two summers that I used it until it randomly died recently. When it's not being used, it's packed up nicely in the box. The humidity setting lights up when it's plugged in, and I can adjust it but the dehumidifier doesn't actually kick on anymore when the humidity gets higher than the desired setting....which I learned the hard way from being out of town for the weekend and returning to the inside of my apartment at 70% humidity level. It's unfortunate that this unit couldn't last more than 2 summers and I'm very disappointed since it wasn't cheap. I would think twice before purchasing it, and research other options.

This only lasted less than 6 months. Try to find the room for a traditional dehumidifier. Don't waste money on this type.

It doesnt work for up to the square footage listed. We bought it for our 30 ft travel trailer. It does remove humidity, but not nearly as well as it states. We live in the damp pacific northwest so mouisture is an issue. It doesnt remove the amount of humidity it promises. After letting it run on lowest humidity setting for 4 days continuous I emptied 2 cups. I should have spent the additional 50 dollars and got a bigger model. I may still be sending this one back.

Don't trust the description where it says it's good for 2,200 sq. ft. but the reality is it's just not powerful enough for that size of a room. Realistically speaking, it's probably only good for a medium sized closet. Also, it's better for a small confined space instead of an open room.

I wanted to buy something that I could run off my solar electric system. This runs off 12 volts (usually provided by an included DC converter), so I was able to simply cut the power cable and splice it into my 12 volt array. That part worked fine, and I run this unit when the sun is shining on my panels and the batteries are all full. So in that way, it's nice that it's working for "free". It's not squeezing water out of the air like crazy or anything though. Granted, it says the minimum air temp is 50 degrees F for this to work, and my basement is 62, so maybe it'd work better in a warmer environment. My relative humidity is about 55 percent currently, and running all afternoon, it's maybe getting a third to a half a cup of water per 8 hours. So it's not getting nothing, but it's nothing impressive. I've bought these "Thermo-Electric" devices before. Last one was a 12 volt cooler - and my feeling on the effectiveness of that unit were on par with this one. It just doesn't work that great - it just sort-of-works.

The unit runs good but it does not pull any humidity out of your basement. I only have to empty it once a week because it is not removing any moisture in the air. On the description it says it will work for basements but I think I should have gotten a bigger unit.

It seems fine but I have four sources of humidity readings in my basement (two dehumidifiers, a "weather station" and this one, and they vary by about 30 degrees from high to low in the same area, with no two readings even close... so I have no idea which is the most accurate. This reads somewhere in the middle of the others. I like the fact that it gives the high-low range on temp and humidity, in addition to the actual (?) readings for each. I just adjust the dehumidifiers for how it "feels" there.

These are great! However.. they need better calibration. I bought quite a few of these because they work out well for a quick glance of controls in the garden. Having five of these lined up right next to each other they all gave a different reading. Not way off, but enough if you want a more accurate readings. For me it's not going to stop me from using them but I do think they could still be closer in calibration.

EDIT: Stopped working after about a year and a half of just sitting on a shelf. Bottom of the screen went blank, and fresh batteries didn't help.These things are really handy to have around the house. We burn wood in the winter, which necessitates using a humidifier to keep the air comfortable. This little unit lets us monitor how cold the house gets overnight, as well as the humidity level. It's small and can stand on its own, so we typically move it from room to room to make sure heat is getting circulated properly. This coming winter we'll probably order another one or two.

Good points: One unit read the correct temperature. The other unit was low by 2°F (1C). The RH on both units was accurate and responded quickly. The display is easy to read although most people expect the largest number to be the temperature, instead, that is the RH.Bad: The unit only works in whole numbers (integer) degrees Celsius. It then converts the temperature into Fahrenheit using those integer Celsius values. Some the temperatures are roughly displayed in 2°F steps. Most people want something with a tenth of a degree Fahrenheit reading. I hated it so much I gave one unit away. The other unit is only used for the RH reading.

PROS:- Affordable- Easy operation- Allows for the use of rechargeable batteriesCONS:- No backlit options. At nights, it is not possible to read the values.- Inaccurate reading and slow to reflect changes. Although my application is to keep an eye on the humidity of the space where my parrots are kept and so super precise readings are not required, there are discrepancies between identical units and in general by several stops in compare to other models. Some have reported drilling holes to increase air circulation for faster adjustments to the reading, but that is too much of a hassle.- I find it valuable to have a clock and date displayed as part of the panel.

I would love to give this a 4 or 5 star rating. The price is right. The temperature reading is pretty close to accurate, which is all I really wanted from this. I would agree with a lot of other reviews that point out the Humidity reading is hit or miss. I have two of these. I sat them side by side for a few days. The temperatures always agreed, but there was typically a 5 or 6 percent different humidity reading between the two. If one read 60%, the other read 66%. I live in Florida - it is alway humid. I really didn't buy these for the humidity information. However, if that is what you need, these may not be for you.

I have had this for about a year (only used in the summer). My power cord has stopped working. The problem is where it plugs into the machine (it seems that it might have melted due to heat)Now I can't get it to work because the cord shorts out at that spot. I need a replacement one, but can't find anywhere to get one. It has an odd shape that plugs into to unit.

Did not lower the humidity in our crawlspace. It sat there for 3 weeks or so and only gave me about 3 cups of water. I expected more when I read the product description information. When I went to check on it the last time it was completely Frozen. The back grate had a large lobe of ice and the inside was almost completely iced up. The crawlspace is chilly, but not THAT chilly....

We bought this to replace our old one (Haier band) after it started leaking. There's no ventilation in our bathroom so moisture from the shower would build up in the bathroom and bedroom and cause mold. Our old one was for a much bigger area(held about 3x as much water as this one) and would be full after only 3-4 days. This new one is much smaller than I expected and after 3 weeks of use, continuously running, it's barely half full. I haven't emptied it once yet. Kind of disappointed after hearing good things.PRO: It is quiet though!!

This dehumidifier was just the right size for the small space we wished to use it in, and it was very quiet, so we were excited to utilize it in a mildly-humid area of our tiny home.Unfortunately the unit did not work as described. After steady use for about four days straight, there was barely any water in the collection basin, and the humidifier readings on our thermometer did not change at all until we opened a window or door in the room. This was extremely disappointing as I expected more from a dehumidifier that cost almost $90.00 and claimed to work in a room almost four times larger than we had.We returned this to Amazon and are waiting for our refund. Perhaps we just purchased a defective unit, but I would not recommend this product based on our experience.

The Ivation Dehumidifier might be fine for a very small (tiny) room and perhaps I am expecting too much from the unit. It doesn't work well for a bedroom at all! The idea behind the unit is terrific but it certainly has limitations. I would not invest in another one. Instead I had to buy a "real dehumidifier" that really removes moisture from the air. I wish I could give a better review but I am disappointed and I wanted to give an honest evaluation. Sorry!

I recently moved into a house in the middle of summer and found myself in need of a dehumidifier. The walls and pipes in the basement dripped of condensation and because I plan on using this area for storage I would like it to have relatively low humidity. I ordered this unit along with an independent hygrometer. The hygrometer ranged from 85%- 95% relative humidity. I was in desperate need of something to get the water out of the air.My main worries were that the dehumidifier would run constantly and spike my electric bill, so I wanted one with a humidistat. I was still afraid a traditional dehumidifier, with a compressor, would contribute to unwanted heat to my home. I knew since my basement is only a partial and a mere 1,800 cubic feet a smaller unit would be fine. With all of this in mind I went to Amazon and found this unit. It uses Peltier technology instead of a compressor, has a humidistat, and can condition up to 2,200 cubic feet while getting 25 oz of water per day. With the three reviews it had at the time I was hesitant because they all seemed to be given instead of purchased and I'm always wary of buying more pricey electronics and appliances without excellent reviews. It seemed perfect!When I got it, it did seem very small, but considering it didn't have a compressor, it didn't have to be so big so I looked past the size. The cord has a converter for it, like a laptop. I plugged it in and turned it on. The first thing I notice is how quiet it is. In a dead silent room, it can be heard, but it is very quiet. The second thing I noticed was the barely noticeable, minute amount of air it was actually moving through the unit. When I put a piece of paper up to it, the paper sways slightly, but that could have been me breathing. I will give it this, it has two vents on the side the air comes out from, so the air passing through it is actually divided up. The third thing I noticed was there is no sort of filter on this device. If there is a filter, it can't be serviced. I just set it up in my basement and the meter on the unit read 85 and the hygrometer read 89%. I went back upstairs and took another look at the box and it said it could extract 20.5 oz of water out of the air. This is just poor advertising and reviews on most other reviewer's part. Most reviews are just repeating what the description on here is saying. Most didn't even notice this misprint on Amazon. I let the unit run for a day and went to check on it. The reservoir had a little under two cups in it, about 15oz. So in reality, it is a third less productive than the Amazon description is claiming. After almost a month this has done little to help with the moisture in the air. It ranges from 80-90% relative humidity now, but isn't even close to enough to prevent mold or excessive condensation. It's a shame there wasn't a larger fan, because I feel this is the bottle neck of the unit. I think it just needs more air to go through to so it can process more. It is what it is. It still only takes about two cups of water out of the air, but still isn't enough, nor is it what it claims to take out of the air.I wouldn't suggest this for anyone. It lacks basic features like a hose attachment and a filter. It doesn't stay up to par with what it claims it can do and just seems poorly designed.Pros: Small, Quiet, Doesn't Produce Much HeatCons: Overpriced for performance, Under performed, No Filter, No Hose Attachment Option, Doesn't Move Enough Air##Update##After 2.5 months this unit will no longer accurately measure humidity. After heavy rains and a very damp basement floor I really needed this unit to pull its weight. Not only did it fail the simple task of staying on and trying its best to keep humidity out of the air, it has been reading the RH as 40 - 45% RH. Because the lowest setting on this unit is 40% it is toggling on and off constantly while doing absolutely nothing to keep moisture out of the air. I have a suspicion the sensor is covered with dust, another issue arising from no filter, and I might open it up myself and clean it out.Marketing this for a very generalized purpose wasn't a good idea. This only moves and conditions enough air, in my opinion, for a very small area with little to no new moisture entering the area. Because it has no screen, it shouldn't be used in areas where dust build-up might occur. Perhaps its use could be for sealed crawl spaces, closets, and maybe a small bathroom where venting is not an option. I only say this would be helpful for the bathroom because a full sized dehumidifier is unreasonably large for most bathrooms. I still have an issue with the price of this, as it does not squeeze the amount of water out of the air as it promises. It reminds me of a knock-off, overpriced specialty tool that is only good for so much and not very good at doing it. In most of these cases there are more productive and economical ways to fix excessive moisture where constant maintenance of emptying a bucket in tight areas isn't easy. I purchased this unit at $114.99 and would only consider buying this again, if I had a use for it in a closet, crawl space or something similar and if the price dropped to below $50. Perhaps buying used or on Amazon Warehouse Deals

I bought this to monitor temperature and humidity under my plant lights. Worked fine for a while, then the second number on the thermometer faded so that it can only be view from an angle. So something in the device display is not working properly. I can see no visible damage to the display Everything else continutes to work. New batteries did not help. I used this under my plant lights to monitor temperature and humidity....so perhaps moisture or heat caused the problem.

It works for what i wanted.It seems to skip a degree though. I usually read 73-75-77, never see 74 or 76.But it wasnt needed for it's precision, and works for what i wanted it to.EDIT: Bought another that is more precise, to compare. Watching a climb of 75 to 77 degrees, this monitor stayed at 75 the entire time. Not very accurate. Only recommend if you are not worried about a degree or two of separation. Not what I wanted though.

I bought this a long time ago and it never worked, it would say 65 degrees f and ~25% all the time no matter what the temperature or humidity was. Clearly broken, but it was so cheap I wasn't going to return it.Recently I had it lying around and decided to open it up and see if there was anything interesting going on inside and lo and behold, I found a glaring problem. One of the legs of the temp/humidity sensor itself was never soldered on. There was solder on the solder pad where it should have been attached, but the leg was up and off to the left, nowhere near the pad.So I heated up my soldering iron and attached the detached leg. The monitor now works properly as far as I can tell. It's responding to temperature changes and humidity changes, though it's very slow to respond and I can't vouch for its accuracy yet.Bottom line, it's a poorly manufactured product, but if you have issues with it like I did, try opening it up and checking the solder joints. You might be able to fix it pretty easily.

I bought the AcuRite 00613 Indoor Humidity Monitor due to its being recommended at another website. For the past couple of weeks I have had the AcuRite sitting next to a Fischer synthetic hair hygrometer - the least expensive, higher quality hygrometer I had been able to find previously. With my Honeywell evaporative humidifier on during the nights and off during the days, the AcuRite consistently reads about 13-15%age points less than the Fischer. I actually have two Fischers, and the second Fisher (usually in another room) is currently reading 3%age points lower than the first Fischer as they sit side by side. Still, that is a 10-12 point difference. I do not currently own a sling psychrometer (one of the most accurate measures of humidity), so I can't be certain which hygrometer is the most accurate, but I do know I'd be putting my money on one of the Fischers. Also, after the first week of using the AcuRite with its very small slotted vents, I drilled 20 holes in the plastic case to promote air circulation. It made no significant difference. I will note that the unit is very responsive to changes in humidity - just breathe on it and the numbers rise quickly, just, I suspect, not very accurately.

My house has a weird humidity issue looks like. Disclaimer: My house is in a flood zone and we can see up to 12 inches of water in the crawl space sometimes. Yes, it scary!That said, I'm told that if you run the heater continuously; which is the case in my house as my wife is always feeling cold, the humidity falls to desert level conditions which would mean under 25%. The opposite happens in my house. In winter the humidity goes up when the heater is running continuously. A co-worker suggested that if there is lack of humidity, then it might be drawing humidity from some other source, which in my case would be the crawl space. But that theory does not hold good for the upstairs bedroom where the humidity goes up as well with running heater.Anyways, I'm sort of convinced this product is not doing what its supposed to be doing unless someone can tell me otherwise. So, I told Amazon customer service that I would like to return this. So, they sent me another one for free and told me to toss the first one in the garbage. The second one is way off as well...on the higher side. See the picture of both of them side-by-side showing different readings. They were in the same place together for quite sometime before I snapped the picture. The color variation is due to one being closer to the cabinet than the other. They are consistently showing different readings.

I purchased this hygrometer to use inside a terrarium in order to monitor temperature and humidity. Unfortunately, it only worked for a few days before it began malfunctioning, the characters on the display fading away until they were completely gone. It appears to me that the device could not handle the high humidity conditions of my terrarium.I like the design and features of this Acu-Rite device, but if it can't handle humidity without breaking down it's not much help to me.If anyone knows where I can get a device like this that can handle high humidity environments (90%+) please comment below as I haven't had much luck finding a reliable hygrometer.

I have two dehumidifiers and this one was way more expensive than the other which we got for a large room but it is less effective. It has a setting which really doesn't do anything at all. Setting the level pretty much has no effect on the humidity of the room. We thought maybe it was placement but we've now tried it in all areas of the room and it has little to no effect.

We did not find this unit to be useful or effective. We returned it after one day. The seller honored their return policy.

We put it in a smaller room in our basement to help prevent any musty smell (we have another larger unit in the main room in the basement). It has been running for a week and hasn't filled up once while we empty the other unit every 2 days. It is set at 55 % humidity but can't bring the humidity below 60%. Our basement is smaller than the size this unit claims to be able to handle. Wouldn't recommend.

I ordered this for a small room that is only 960 cubic feet; this is rated for over 2000 cubic feet and can't keep up. It has taken over a week to fill the tank only half way and the tank is small, really small. I have it set for 55% and the room is always at 80%. I would have returned it for a refund but I threw away the box thinking it looked like a cool little unit. It has been plugged in for over a month now and I have only emptied the water three times and never due to the tank being full. I wish I would have spent a little more for a bigger unit now I'm out a hundred bucks for something that doesn't work.

Not up to the task. First bought the smaller ...20 and it was not removing much water per day and not lowering the humidity, which was about 75%. Room was only about 1200 cubic feet. Bought the ..45 and still not removing much water. I have fans moving air around in the room, and control the temperature at about 75 deg, F Read about the technology on Wikipedia and it states the reason these are not popular is they are very week in removing water. I have ordered a unit with compressor, the primary type of dehumidifiers. For just another $50 I should be able to remove up to 30 pints per day!! rather than a few ounces.

it is small and quiet, but after a week of constant operation it has failed to significantly reduce humidity. I set it to 20% (lowest setting) in less than 2000 cubic foot space with 70% humidity and it has only come down to 57%. My old compressor style dehumidifier is big and loud and took less than a couple of hours to reduce the humidity from 70% to 50% and if set to its lowest setting, it takes over night to get to 45%. All of my trials were measured with 4 acu-rite temp/humidity devices. I would exchange it in hopes that this is a faulty unit, but I won't because I have to pay for shipping on the return (they will only reimburse $10.59 shipping - not the total). I guess if it seems to good to be true...it probably is. I wouldn't worry about having to empty the tray as the water seems to evaporate from it as fast as the machine takes it out of the air.

Have had this unit running for 24 hours now, and none of the readings are correct. Humidity reads in my apartment at 26% and the humidity level icon says its OK, which is NOT in a healthy range, according to the instruction manual. Also, it says my temperature is 79 degrees, and my thermostat reads 70 degrees. Not trustworthy. Don't buy this one!

I have had this now for a year and it is inaccurate by 5 degrees Fahrenheit. I have set the a/c in the house to 78 and it shows 73. I have also tested the area this sits with an infrared thermometer and that shows the temperature to be 77.8. I even changed the battery. Who knows how accurate the humidity sensor is. Not sure how this has so many good reviews.

purchased 6 of these over the past 5 yrs. and they worked great. Purchased 4 more in 2017 but they are way off. I lined all 10 of the ones we own in a row and the old ones all read within 1 degree or % of each other but the 4 new ones are way off. 9% humidity and 7 degrees which is huge discrepancy. All read different too.Used to be a good instrument for the money.

I bought this on Dec 22 2016. It worked well for months. Today (April 24 2017), only 4 months later, I noticed it was not on/working. I swapped out the battery for a new one and it still did not work. I tried 3 different batteries (including ones from my TV remote that I know to be working) and still did not work. Sad it didnt work longer.

Item is defective and has a terrible return policy. If you want to return it, you have to pay shipping and handling. After the company receives the product, THEY decide if it is defective.My product will not display anything below 53% humidity. I purposely put it in a low humidity environment and a high humidity environment for 24 hours each. I did the salt test and it displayed 72% humidity, which is close enough, but no matter what I do, it will not read below 53%.

Don't bother. Bought it mid January and two weeks after the return window to Amazon expired, the screen is displaying fragments of the numbers, i.e., the digital display is broken. Hasn't been dropped, submerged or damaged in any way. Apparently not good quality.