Weewooday Mini Digital Temperature Humidity Meters Gauge with Probe Gauge LCD Fahrenheit Display Thermometer Hygrometer for Incubator Reptile Plant Greenhouse Chicken Coop Garden(Black, 3 Pieces)

Needed this for my incubator as the humidity wasn’t correct on it. These definitely work and help me maintain the correct temp/humidity to have a successful hatch. I just needed something quick and cheap in the moment and this is perfect for it.

You get three new meters from the same company, and they still don't all agree on the humidity. In all fairness, I have had numerous types and brands of meters, but only one gave an accurate humidity reading.I always perform a 24-hour salt calibration test to see just how far off they are before using. It is a good habit to get into if you rely on humidity levels for whatever your hobby may be. Look on YouTube for instructions.I've purchased six of these inexpensive little meters, which usually run 2-4% off in either direction. I have also used $20-$30 meters that were 9% off.I actually prefer these because they have the separate sensor, and the meter can stay outside of the habitat. The 80% humidity requirements in a hermit crab habitat seem to shorten the lifespan of digital meters and I have had a few where the readouts went wonky too soon (entire meter was inside the habitat).

I've had these running in my Grow booth for over a year now and still haven't needed to change batteries and the checkout against my high dollar meter

definitely OFF as far as temp calibration goes , all 3 units placed touching each other , the humidity was similar but the temp readings were way off , one was reading 10-15 degrees F higher than the rest , the other 2 were about 5 degrees difference, so won't work for my needs ,purchased a certified calibrated one will be testing them against it later .

When these arrived, two of them are dead, one of them had a messed up screen, and the other three looked okay. After switching the batteries around, I now have four of them functioning and looking normal, while one of them just has a messed up screen. You're supposed to be able to look at it straight on, but it has a weird viewing angle where you have to look at it at an odd angle for it to be legible. It also sucks that because two of them had completely dead batteries, and they were all probably manufactured and packaged at the same time, the batteries in the others are probably not far behind so I have to get new batteries for all of them which is an extra cost. I'm going to still give them a try though, because they were pretty cheap, they have probes, and their temperature and humidity readings are all pretty close to each other. If you're on a budget like me and you need a lot of them, I guess I recommend them, but if you're willing to spend a bit more money I would get something else. If these turn out to be trash I will not hesitate to replace them with more expensive ones.

Received very quickly, installed on my incubator to compare the two difference of both thermostats and the digital one I bought was closer. They came 3 to a pack and I find the price was not bad, I just went ahead and bought 2 packs for the future. You can use these in all sorts of was including checking refrigerators thermos and humidity.if I would by again I would by the one with a larger display.

Good item

Unit is all the place over both temp and humidity . Not very accurate.