Reptile Thermometer 4-Pack Mini Digital Humidity Temperature Meters Gauge Indoor Hygrometer Thermometer AikTryee wiht ℉ for Humidors Greenhouse Garden Cellar Closet Guitar Case

Use these around the house to see if I have any hot spots and then adjust AC diffusers accordingly

Very pleased with this purchase. Thermometer is accurate +/- 1° F and hygrometer is consistent among the 4 received.Immediately after unboxing, one had wildy different measurements and I was afraid it was going to be a dud. I put them in the bathroom during a shower and immediately after the shower all 4 were exactly the same- though one changed just before I took the picture as the room temp and humidity began to drop. They each adjust at slightly different speeds, but stabilize within a couple minutes.I compared the temperature readings to those on 2 different digital oven thermometers and my old thermometer/hygrometer (on which the humidity always measures 99%, so cannot compare hygrometers). As long as the temperature was stable, they were all within 2° of each other. My oven thermometers actually measured 1.5° apart. So I'm pretty confident in the performance of these.I purchased these to monitor the environment in my succulent seeding domes, based on the reviews of high accuracy and cost. Monitors with corded probes would have been more convenient, but I couldn't find them at a similar price with good accuracy reviews and without the humidity reading being larger font than temperature. The temp and humidity fonts are the same on these. The humidity reading is first (left), which threw me off initially since I'm mostly interested in temperature, and the temp and humidity readings are very similar in my setting (usually 75-80 for both). I resolved that by putting a small mark underneath the temperature with a silver sharpie, which draws my eye to it.The back portion of these happen to be the exact height as an Avery 5961 address label (1") which I had handy. I cut a label at the measured width and stuck the label onto the plastic humidity dome, cut out the portion with the label, and pressed the back of the monitor into the cutout.I have noticed that the dome-mounted temperature is occasionally a couple degrees below the one that sits inside freely atop the seed trays (there temporarily), but at other times it's spot on. I chalk that up to location and being closer to outside the dome (ambient temp about 15 deg below dome temp). I just set this all up last night. But it's not a big deal if it is a persistent finding.

They all register the exact same humidity and temp when placed side by side. So we scattered them around the house and now we can see at a glance the temp in a room. Do not put in fridge though.

I keep isopods and 2 disabled hamsters. These are very accurate and sensitive, which is just what I needed to keep an eye on temp and humidity. It came with extra batteries and sticky backs. I dont plan to use the stickies and am making a holder for them to make them easily removeable so I can get to the back where the battery is located. The sticky backs seem that they would block battery acesses. The one thats 1% off just changed as I took the picture.I prefer these as both the humidity and temperature are equal in size and make it a lot easier to read. They are small and compact, perfect to not take a lot of wall space in your enclosure. They are quick to adjust. I left them for a day to even out since its very cold where I live. They need time to balance after shipment, thats just how any hygrometer/temperature gage works. Overall I do plan to get more when I need to.

This is my third purchase of these thermometers.They come with extra batteries and adhesive pad to put on the back to mount.You can see the display clearly.I mounted them and all my vehicles, including my UTV and RV.You can set them on your bed, headboard, on your desk, on your bed, headboard, in your refrigerator, and your shop.

Second time I've bought these. All are accurate with each other. I have one in every room and 2 outside. Thinking of putting one in a plastic bag and semi burying it in my garden to give me a clue as to how warm the soil is. Who knows????

The readings don’t all match but they aren’t off to the point where it would be concerning hence why i still say 5 stars. I don’t have much to compare the readings too but I was recommended these and they seem pretty good.

Everything is perfect but I don't think it's water proof still working and no problem