AcuRite Humidity Meter Hygrometer and Indoor Digital Thermometer with Temperature Gauge and Humidity Gauge, Room Thermometer Comfort Scale, 3 x 2.5 Inches, White (01083M)

[NOTE] At the time this review was written, this device had only been for sale since December 2016 and reviews for 3 completely different models were all mixed up together. So to be clear, this review refers ONLY to the AcuRite Pro model AcuRite 01083M Pro Accuracy Temperature & Humidity MonitorLIKES1. Small physical size but large easy to read primary displays2. Well-designed hole for hanging plus 2 strong magnets. NO fold-out easel stand but wide flat base allows it to stand up pretty well3. Setup controls are not too complicated4. Smaller digital readout of temperature and humidity history. The temperature one is for the past 24 hours, the humidity one can be switched from past 24 hours or lifetime (until the battery is replaced at which time it resets).5. Comfort zone scale is somewhat useful and easy to understandNOT SO GREATThe largest display is humidity and the smaller one is temperature. Some people, including me, would prefer to have them reversed. It would cost nothing for them to make this a setup option, it makes no sense why the designers didn't realize thatNote that there is no clock function whether visible or not. That means that you can't choose when the 24 hour cycle begins/ends for recording daily highs and lows. For example if you insert the batteries at 3:48 PM that's when the 24 hour recording cycle will begin. You can trick the design by waiting until midnight to insert the batteries if you want to know the history for a true 24 hour cycleThis is a simple temperature/humidity reader, there are no clocks, remote sensors, alerts, alarms or anything else. For my purpose of monitoring the room temperature and "comfort" level of humidity in my bedroom none of those mattered, I bought this because it was exactly what I need.ACCURACYA thermometer is worthless if it's not accurate. Unfortunately the vast majority of thermometers being made these days are pure junk, sometimes nowhere even close to being accurate. And humidity meters can be even worse. This one out of the box was within reasonable tolerance if you're not picky but it did read a couple of degrees high for both temperature and humidity. That would be something you'd have to live with for most products in this price range but the good news is that with this model you can fine tune both the temperature and humidity readouts by calibrating them using a known accurate device. Once calibrated the AcuRite Pro was dead on after that, at least until the batteries had to be replaced.

I just received this unit and so far I really like it because it's very easy to operate and read AND it records the highest and lowest temps for the past 24 hours... it shows "trending" changes, too... which is one of the main reasons I got it... the humidity has been just awful here in central Florida this summer and I wanted to see trending humidity as much as I wanted to know the temperature... I also like that there is a color-coded bar that has an indicator arrow showing what range the current humidity falls into, "low, ok, or high"... it's a great little unit and I'm going to get a couple more, I think, to keep permanently in several locations... for inside the house where the air-conditioner is, and for the carport and garage where I have a lot of stored memorabilia and tools and also for the chicken coop... The only drawback to this unit that I can see is that if you move it from one location to another and there is a big difference in temperature, it takes awhile for the box itself to cool down or warm up to the new ambient temperature before it can start reading the new temperature correctly. When I took it out of the mailbox, the ambient outside air temperature was 95 degrees (in the SHADE)... so the temperature inside the hot, metal mailbox was probably about 110 degrees, the package was actually warm in my hands when I picked it up... I took it inside to an air-conditioned room that was 76 degrees... and when I immediately opened it and popped in the batteries, it read out 103 degrees even though the actual temperature where I turned it on was 76 degrees. It eventually read the correct room temperature and kept up with the changes okay... but later, when I took it out to the carport, the same thing happened in reverse... it was still reading in the 70's, even though the air temperature was in the 90's out there at mid-day... (I have a baby video monitor in the chicken coop that reads new temperatures immediately whenever, and wherever, it is moved.) I think this "lag time" is a drawback if you plan on moving it to different locations during the day as I had initially planned to do... The humidity meter seems to change much more quickly. All this being said, I LIKE the unit... Another really great perk is that it has magnets on the back (in addition to screw slots for wall mounting) that are very strong and the unit grabs on instantly and securely to anything metal, so it's VERY easy to put it and then take it down again almost anywhere that you want to monitor the temperature and humidity. It clicks right onto file cabinets, metal carport posts, lamp posts, cage wire, the metal baskets around fans, etc. The "24-hour log" can be easily reset to start over again immediately, too. I haven't even had this 24 hours, but so far... I am VERY happy with it... I only wish it would adjust faster when moved, but maybe it's really designed to stay basically in one location. It would also be nice if it lit up in the dark, too! The information booklet is VERY well done, it's simple and clear and easy to read with nice-sized bold print... it lists the website and support information (www.AcuRite.com) I just went to the website and it is chock-full of ALL KINDS of sensor equipment for temperature, humidity and weather stations, etc. GREAT STUFF! I think before I order more of these units, I'll check out their other products first... since I live in hurricane country, their weather stations looked pretty interesting... and they also have lightning sensors, too!