Review on 🌡️ AikTryee 4-Pack Mini Digital Hygrometer Thermometer for Precise Indoor Temperature and Humidity Monitoring in Humidors, Greenhouses, Gardens, Cellars, Closets, and Guitar Cases by Fuzzhead Nelson

One of the sensors came with dead batteries. They seem to read too high a temperature and too low a humidity, they all read within 3% and 1 degree of each other. Picked up outside on a hot and muggy Florida day they show 50% relative humidity and when I take the car out they show around 30%, both of which just seem too low. As you can see they are about 10% lower than my smart thermostat and about 3 degrees higher. If you need more than just a rough idea of how wet something is, avoid these as they can only give a basic estimate. However, it is nice to be able to mount them on flat surfaces.