AcuRite Wireless Digital Indoor Thermometer and Hygrometer Monitor for Inside Temperature and Humidity Measurements (00613)

UPDATE June 10, 2015:This is still running along like a champ. It keeps on telling me how truly warm our bedroom is, even with the A/C running!(Right now, it is 82 degrees at 2 in the morning, with the A/C, a ceiling fan and a box fan running. Eww!) In fact, after a few days of looking at the really high humidity in here as well (the roof of the little house turns black when it gets higher than it should be), I am back on Amazon, shopping for a dehumidifier. (We rent, so we cannot just get a new A/C unit etc.) By the way, we have not had to change the battery since we bought in three years ago, so it doesn't suck through the batterie either. Great little unit!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~I have to say that I really wanted the blue one, but the tightwad part of me said to save a few bucks and get the black one, in case it doesn't really work. There are a lot of mixed reviews on this item, so I wasn't sure what to expect.I wish I had had it during our recent extreme heat wave (over 100 for two weeks in a row, with killer heat indexes).Of course, it might have been even more depressing to see what the inside temperatures REALLY were like! We have a temperature gun that has the point-n-shoot laser that gives instant feedback on the temp of any given surface. It works great, but it's my husband's maintenance toy, and I couldn't keep it all the time. So, I looked for my own toy.This one certainly fills the bill. I kept his gun up here for about a week to double check the temps on what it said vs what the monitor said. It was very accurate. Now, I didn't have a way to measure the humidity with his temp gun, but I can tell that by how swollen my ankles are! ; )So far, it works like a champ. If I was to change anything at all, it would be to have some sort of hole to thread something through to hang it up. Right now, I don't want the magnet around my computer equipment, so have to watch where I put it. I have nothing metallic to attach it to, so it is sitting up on my desk, away from my CPU.The display is large and easy to read. It started working immediately upon putting in the batteries. (It takes only one (1) alkaline AA battery. Of course, no clue how long it will last yet, but only one is great!)Bottom line: I'm glad that I got it. I like to know the basic temp/humidity level in the bedroom where I have it. Our older-than-dirt apartment has almost no insulation, so whatever it is outside, we are usually just a little bit cooler inside, thanks to a black roof and brick sides that retain the sun's heat.Great job, Acu-Rite - it works like a champ!UPDATE 07-23-12:I do have one bone to pick over this item. Having used it a little longer now, I now see that thehighs/lows to the right of the temperature or humidity level are only for the LAST 24 HOURS!!Instead of showing the highest temp in the room or lowest, it is only the high/low for a one-day period!That kind of stinks. I realized what it was doing when we hit a high of 92 in the bedroom (with the A/C running,ceiling fan and box fan - I hate this heat wave!), and that temp disappeared when it cooled off over theweekend a little bit (to a temp of "only" 81). Now both the high and low are 81.That part isn't pleasant, but I wanted to mention it, in case anyone was trying to track how hot/cold it gets ina particular area. You'll only see a max of 24-hrs of info, and your old data will disappear. You'll have to tracktemp changes manually. The temps do seem accurate, but the lack of actual high/low storage is a bit disappointing.

This is a handy item to have when you m want to check humity levels in your home, etc. It is a little smaller than I thought it would be, but it does the job well. Thanks, Amazon, for a good product!

Works great and is accurate for temp and humidity. Easy to read and tracks recent highs and lows.

I moved to northern California from Arizona, so I wanted to gauge how much indoor humidity was present, seeing as I have several guitars. I got this gauge because it looked fairly robust in the pictures. Well, I am using it and so far, the results are good as far as the humidity. It has registered between 37 and 51% since I began using it - which is well within tolerance for guitars.I like the large readout, which is very easy to see across the room. It also shows the range of both temperature and humidity in the last 24 hours.One point I would like to make is that the description didn't say that it takes a AA battery which is not included.It does say AAA, but that is incorrect - so if you order it make sure you have a fresh AA battery handy.It is a good product and worth buying at the price they are asking - around $10.

Update January 1, 2020: Still working well!I still use this thermometer almost seven years later now and it still works great!April 19, 2013: I bought this soon after my son was born, who is now almost 16 months old, and we have been relying on it constantly over the last 15 months. I am one of those parents who worried obsessively about the temperature in the room and this eased my concerns. Every time we have traveled I have taken it with us, even to two other states and on an international trip to Asia. It has held up well and we've only had to replace the batteries once, after we'd had it for about 9 months. The temperature gauge is set to Celsius as some have mentioned, so it doesn't read every number but it is extremely close- never more than one degree different if in Fahrenheit. My thermometer does read both evens and odds when in Fahrenheit mode but skips some numbers. It will tell me 71, 72, 73, 74, 76, 77, 79, 81, 82... It is not a big enough concern to me that it skips 75, 78, etc that I would want to replace it with a different thermometer. Like I said, it wouldn't be a skip larger than one degree- if the actual temperature is 75 this will show me likely 76 or it could show 74. It does take about 10 minutes or more to make large temperature changes that are sudden. What I mean is that if my AC comes on and currently the temp is 74... Very soon it will change to 73 or 72 as my AC is on. Then my AC clicks off and soon I can see the numbers going back to 74... Soon my AC comes back on... It works as it should. But if I go stick the whole thing in the freezer it takes longer to read the larger temperature drop. It seems like it thinks for awhile about what the temp is, it doesn't drop immediately. I really don't know why it doesn't do large temp differences immediately but I know for the minor variations most people are likely to have in their house it reacts well. And if it is a large temperature drop it'll get there and give you an accurate temperature reading it just takes several minutes. That's okay, I'm patient :) Overall, I've been very pleased with this thermometer. The only small drawback to me is that it doesn't have a nightlight but for some people that is preferable that it doesn't. It's not a bad thing. They sell thermometers with night lights if you want to pay a higher price. ;) For this price, this one is absolutely perfect. It has held up well over the last year+ and gives me the correct temp. It's been a necessity for this worried/obsessive first time mom!

Very accurate. This is my 4th time I've purchased this item. I place them in various locations of my home. Very pleased with the quality and performance.

Excellent value. Very accurate and a lack of backlighting is a non-issue.

My husband likes this Humidity/thermostat in each room. It works very well!