Description: Easy to Use: Connect the circuit according to the wiring diagram, power supply is DC12V, and the probe is connected to the object. For heating: connect 12V heater to the - H +; for cooling: connect cooler to the + C -; heat dissipation: Please connect cooler or heatsink connected to the + C -. Note: please pay attention to the positive and negative poles. Indicator Status : the red indicator light is on indicating the cooling (+ C-) output, and the light is off which means the heating (-H+) output. Application: It can be used to control heating (liquid, mold, space), etc., and can also be used to control refrigeration (box, appliance, water, pet room, air conditioner). Temperature Probe: 10K thermistor, Environmental Requirements: -10 ~ 60 °C Humidity: 20% -85% Specification: Model: XH-W1701 Size: Approx. 36.5x36.5x18 mm/1.44x1.44x0.71 inch Installation screw: M3 * 2 diagonal size 39.5mm Temperature range: 20-90 °C Control Way: Heating, Cooling, Heat dissipation Control Accuracy: 0.1 °C Hysteresis Setting: 1-10 °C Refresh Rate: 0.5S Supply Voltage: DC 12V Output Voltage: DC 12V Output Power: Max 200W Static Current: ≤ 3MA, attract current ≤ 60MA Size Chart: Size: approx. 36.5x36.5x18mm/1.44x1.44x0.71inch Cable Length : approx. 30cm/11.81inch Package Includes: 1 Piece Heat Cool Temp Thermostat Module 1 Piece Cable Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!