Review on 2-Pack Mini Digital Hygrometer Gauge Thermometer – Indoor/Outdoor Temperature Humidity Meter for Humidifiers, Greenhouse, Reptile Plants, Humidors – LCD Monitor, Fahrenheit Display by Jimmy Montalvo

I bought two of these for my cigar humidor. I've found them to have a 10% inaccuracy in humidity (I've compared them to a calibrated instrument). I know what I'm doing, I have a degree in chemistry and things like sensors and humidity have become second nature to me. I do not recommend buying these. I would ask for a refund but the price was so low it wasn't worth my time. I always have to remember that you get what you pay for.