Review on 🌡️ Vaikby Indoor Thermometer 2Pack: Accurate Digital Hygrometer and Room Thermometer for Home, Greenhouse, Reptile Tanks, Humidors, Cellar and Office - Monitor Temperature and Humidity Levels Effectively by Mari Hall

This is the most accurate brand of inexpensive hygrometer I've seen at Revain. The specifications of the device state that the relative humidity readings are accurate to +/- 2%. I've tried several other square black hygrometers sold here at Revain (you know the ones I'm talking about), some claim 3% accuracy, some 5%RH, and these differ by 6%+RH or more if testing. They cannot be calibrated manually so I left them in the Boveda 75% packaging for more than 24 hours to see how accurate they are. reading is accurate. I will re-evaluate them in about 3 months to see if the accuracy remains.