Review on 🌡️ KETOTEK STC-1000 Digital Temperature Controller Thermostat 110V Fahrenheit 2m Waterproof Sensor Heating Cooling LED Temp Control Dual Relay Incubator Aquarium by Charles Lardieri

I used this to replace the built in thermostat in a window air conditioner. Installed the day after receipt and tested with very accurate temperature gauges. It needed a little calibration, but after that the temperature in this room became stable. Powerful enough to control the compressor without an additional relay while the fan runs constantly. I would definitely recommend this product to anyone who needs an accurate temperature control relay. After setting the swing temperature and delay, expect them to remain constant and not fluctuate. I have a maximum vibration temperature of 1.5 degrees. It could be made much tighter, but it doesn't need to be much tighter for an air conditioning compressor.