1. Connect the power supply and equipment to power the controller. At this time, the display shows the measured temperature. Press the SET button once, the temperature on the display flashes, and press +-to set the desired temperature (press +-to quickly up and fall). After completion, press SET to confirm and return. At this time, the controller will automatically switch on and off the relay according to the setting The thermostat output is a 20A relay, which meets various high-power loads. Connect the control circuit to power the thermostat. At this time, the display shows the ambient temperature. 2. Indicator light: flashing means the cooling or heating start delay, constant light means the relay is closed. 3. Digital tube: display LL as the sensor is open circuit, please connect the sensor according to the instructions; display HH as the measuring range is exceeded, the thermostat will forcibly disconnect the relay; display --- high temperature alarm. (A manual is attached to the product, with detailed descriptions of parameter settings) 4. Long press SET for 5 seconds to enter the main menu setting, press +-to switch P0...P6, long press SET or 10 seconds without key action, the controller automatically confirms and returns. 5. Portability: This product is small in size and light in weight, which is very convenient to carry around. Description: Made of high quality material, this product is a practical host. Specifications: Material:metal,palstic Color:red blue Temperature control range: -50~120 Resolution: 0.1 at -9.9~99.9, other temperature range 1 Temperature measurement accuracy: 0.1 Control accuracy: 0.1 Backlsh accuracy: 0.1 Refresh rate: 0.5 S Input power: 12V Measurement input: NTC (10K 0.5%) waterproof sensor Output: 1 relay output, capacity=20A Environmental requirements: -10~60, humidity 20%-85% Specification size: 79mm*43mm*26mm Package Included: 1 pc * Host