Review on 🌡️ JEDEW 2-Pack Mini Hygrometer Thermometer: Ultimate Digital LCD Monitor for Indoor/Outdoor Humidity Meter, Temperature Control in Humidifiers, Dehumidifiers, Greenhouses, Reptile Habitats, Plants, and Humidors - Fahrenheit(℉) or Celsius(℃) by Joseph Harkins

Works great in our bearded dragon habitat. One at the hot end, the other at the cold end. I tested it with temp. probes and it's always within 0.2 degrees of what they say. I'm fine with that difference. It doesn't have to be exactly what we use it for. I haven't been able to test the hygrometer's accuracy, but putting water on its plate affects the percentage a bit. So I assume this works well enough already. Can't comment on the battery life yet, but they've been using them for 3 or 4 months now and they're still working.