Review on 🌡️ 3 Mini Digital Thermometer Hygrometer: Accurate Indoor Temperature and Humidity Monitoring for Your Incubator, Reptile Tank, and Plant Terrarium by Amber Chavez

The reading is at the extreme end of the specified accuracy range. The temperature is about 2 degrees below zero. Humidity appears to be 5% higher when humidity is low and then too low when humidity is high. I did a rough salt calibration (although they can't actually be calibrated) and they stabilized at 60% instead of 75% as intended. All three show different readings in the same place. I use them for terrarium plants so they suit me well. I would not use them to monitor the animal's condition.