A thermostat is an electronic device that regulates temperature. It senses the temperature of the system and regulates it by maintaining it near the set point. The screen of your air conditioner or heater display a certain temperature, say 19°C. There is a thermostat in the appliance that is throwing cooler or warmer air into the room to maintain the temperature at 19°C. This … [Read more...] about Top 15 Best Smart Thermostats in 2020