Power supply voltage: DC5V/12V/24V AC100-220V. Resolution: 0.1 at -9.9~99.9 and 1 in other temperature ranges Temperature control range: -50~110 Temperature measurement accuracy: 0.1 Sensing probe: 1 meter NTC waterproof probe Control accuracy: 0.1 Output capacity: 1 20A relay output capacity Environmental requirements: -10~60, humidity 20%~85% Specifications: 79mm * 43mm*26mm How to use: After connecting the power supply and equipment, you can power the controller. At this time, the measured temperature is displayed. Press the SET button once, and the temperature on the display will flash. ) After the setting is completed, press SET to confirm and return. At this time, the controller will automatically turn the relay on and off according to the setting! The thermostat output is a 20A relay, which can meet various high-power loads. After connecting the control circuit, the thermostat can be powered, and the display shows the room temperature. Indicator light: flashing indicates a delay in starting cooling or heating, a steady light indicates that the relay is closed. Digital tube: LL display means that the sensor is open, please connect the sensor according to the instructions; HH display means that the temperature controller will forcibly disconnect the relay; --- display means a high temperature alarm