Review on 🌡️ 4 Pack of Ambient Weather WS-03-4 Compact Indoor Temperature and Humidity Monitors by Douglas Jakab

I bought this along with the humidifier so we can determine what humidifier settings to use when our oven is running. Two AAA batteries are required, which are not included. So if you buy one, make sure you get the batteries too. It does everything it promises and works great. It has a hole in the back so you can hang it, so we installed ours next to our electronic thermostat and found it to be room temperature. I would recommend this device to anyone buying a humidifier to help you understand the humidity level in your home.