Temperature measurement range: -50 to 110°C (-58 to 230°C) ℉; Resolution: 0.1℃ at -9.9 to 99.9, and 1℃ between other temperatures; Update rate: 0.5s Two-color LED display: The temperature controller monitors the instrument and simultaneously displays the measured temperature (red) and the set temperature (blue). Can be used in cooling/heating mode to test indoor or outdoor temperature Waterproof Design: NTC probe (10K 0.5%) is waterproof, and you can control the temperature at will, you can also control heating or cooling according to different needs Reliable to Use: The electronic temperature control switch module has been tested for consistency and reliability, and its control accuracy is 0.1 degrees Celsius, the reaction accuracy is 0.1 degrees Celsius with high temperature protection Wide Application: Electronic thermostat can be widely used in intelligent home and industrial appliances, household appliances, automatic irrigation, office machinery, audio, vehicles, aquarium, fish tank and so on. Temperature Setting: Press the set button for five seconds, then you will enter the main setting menu, and press STC(+) and C/F(-) to switch to P0 - P8. Press the STC button and the LED light will flash. Press the STC(+) and C/F(-) buttons to reach the setting temperature and wait 3 seconds before the module automatically saves the settings and exits. Index: The lamp is on and the relay is closed; The lamp is off and the relay is turned off. LED display: Red: Measured temperature; Blue: Setpoint temperature LLL: Indicates that the sensor is on Hhh: Indicates that the temperature is outside the module's measuring range : Indicates that the module is protected at high temperature Introduction to Programmable Thermostat (Code, description, setting range, factory setting): P0, heating/cooling, H/C, C P1, return differential, 0.1-30, 2 P2, set maximum limit, + 110, 110 P3, set minimum, - 50, - 50 P4, temperature correction, - 15 - + 15, 0 P5, delayed start, 0 - 10, 0 P6, high temperature alarm, - 50 - + 110, off P7, C/F, CS/FH, CS P8, factory reset, ON-OFF, OFF