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 -50C to 110C; 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 Durable material: this XH-W3001 digital thermostat switch is made of plastic, which is non-toxic, strong impact resistance, heat and low temperature resistance Waterproof probe: equipped with a 1-meter NTC10K probe, which is waterproof and not easy to rust, easy to and can last for a long time Suitable for: the temperature controller module can be widely applied in the conditioning systems, incubators, equipment cases, temperature control protection and others size:60x45x30mm Material:plastic colour:Photo Color Package Contents: 4 * Temperature Controller Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.