1. 2 Working modes: this digital LED temperature controller module has 2 working modes, heating mode ( temperature is lower than stop temperature) and cooling mode ( temperature is higher than stop temperature), range from -50℃ to 110℃; The high temperature control accuracy reaches 0.1℃ 4. Waterproof probe: equipped with a 1-meter NTC10K probe made of stainless steel, which is waterproof and not easy to rust, easy to use and can last for a long time 2. Stable and reliable: the LED indicator light can display the current output status; The digital display tube can display the measured temperature, and the temperature measurement and control accuracy is high 3. material: this XH-W3001 digital thermostat switch is made of ABS, one of the five major synthetic resins, which is strong impact resistance, heat and low temperature resistance 5. Suitable for: the temperature controller module can be widely applied in the conditioning systems, incubators, equipment cases, temperature control protection and others