Durable material: this W3230 digital thermostat switch is made of ABS, one of the five major synthetic resins, which is non-toxic, strong impact resistance, heat and low temperature resistance<br>Suitable for: the temperature controller module can be widely applied in the conditioning systems, incubators, equipment cases,domestic freezerindustrial equipment, temperature control protection and other temperature-controlled system<br>2 Working modes:digital LED temperature controller module has 2 working modes, heating mode (start temperature is lower than stop temperature) and cooling mode (start temperature is higher than stop temperature), range from -50°C to 120°C; The high temperature control accuracy reaches 0.1℃.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<br>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<br>The last few pictures are function introduction pictures, please contact us for more detailed usage.