Mini Digital Electronic Thermometer Hygrometer - 12 Pack for Indoor Monitoring in Humidifiers, Greenhouses, Gardens, Basements Review

Perfect little tool for the inside of my ball python's habitat. seems very accurate, I like that I have 4 so I have backups if needed. The only problem. I wanted them to have separate batteries so the ones not being used wouldn't work.

They arrived in working condition and they are within 1% of a fancy expensive unit I borrowed from my husband until they arrived so it's close enough to meet my needs namely the hatching of chicken, turkey, duck, and emu eggs. They already work, so I'm not sure how long the battery will last, so for the price I'd consider them almost "disposable". This is an affordable and fairly accurate alternative to an expensive device. Exactly what I need. * If this review was helpful to you, please let me

I liked their shape and weight. I would like to point out that the large numbers indicate humidity and the small numbers in the upper right corner indicate temperature. I didn't like that the time readings show a decimal fraction. You should only use an integer. This bothered me because when I received them all 4 devices had different readings. One deviates by 2 degrees. Who cares if the temperature was 75.1 degrees. I would have 3 with the same temperature. The rest deviate by 0.5 or 0.9…

I bought 12 packs thinking they were almost the same as the rectangular ones I got from another seller before. You are not. These things are more than 10% inaccurate, every single one of them. I expect cheap little hygrometers to be off by a few percent from time to time, I'm not one of those nutcases who think they need to be scientifically accurate. However, more than ten percent is unacceptable and renders the device completely unusable. If you're buying them for cannabis treatment, don't…

I've tried uploading a photo about 10 times but Revain keeps crashing when I try. Don't waste money on them. They were delivered today and they only ship for. the whole time. Nothing to keep the batteries disabled or anything like that. 3 out of 4 were on and the other was DOA. I'm not sure if it's the batteries or if they're broken, but either way I don't care. The 3 included are not compatible with each other. I put all 4 on the counter in my kitchen for a few hours and one reads 33% humidity

No switch, so all 'on' packed. They all came without the little strip of plastic preventing contact with the batteries, so who knows how long the batteries will last. These are very small watch batteries (exact type not given) and each unit requires 2. It will most likely be difficult and/or expensive to replace 24 of these when they start dying. error on this +/- 3%? If so, then they are all "exactly". I think they'll give you good baseball readings for temperature and humidity. If that's good

I do not recommend them. When I took them out of the box they all showed different humidity levels and temperatures. I left them side by side on the counter for hours, all showing varying humidity and temperature. Put 2 in my fridge which has a temp sensor and both show different humidity and temperature which is different than what my fridge says about temp. I wanted them for my guinea fowl incubator so I put all 4 in my incubator, all showed different humidity and temperature and didn't match