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

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 the set temperature in my incubator. The picture most closely corresponds to humidity and temperature, but only 1 shows the temperature the incubator is set to. Don't waste your money, I'll buy something more reliable. But if you just want a general idea of what humidity and temperature really is and don't want to get confused if all 4 are read differently then I think you can buy this. Updated: 06/19/21. One no longer works.