Dual LED Display DC Digital Temperature Controller Thermostat Regulator Upper/Lower Limit Dual Relay Output Control Switch 12V

12V temperature control -20~100°C precision double relay alarm air conditioner description: Temperature range: -20 ° C ~ + 100 ° C Resolution: -9.9 ° C ~ 99.9 ° C paragraph 0.1 ° C, other temperature range 1 ° C Temperature measurement accuracy: 1 ° C The lowest temperature difference: 0.1 ° C Refresh rate is about: 0.5S Input power: DC 12V Measurement input: 1 m NTC (10K 0.5%) alloy waterproof sensor Output: two relays 10A Environmental requirements: -10 ° C ~ + 60 ° C humidity 20% ~ 75% Size: 70mm * 39mm Intelligent dual temperature control relay command Tip: When setting the temperature, the buyer must ensure that the upper limit temperature is greater than the lower limit temperature for the system to work properly. Circuit connection: Refer to the circuit diagram and load connection power supply, the temperature sensor is missing or damaged, the digital tube displays “---”, and the temperature sensor must be checked before installation. The temperature output 10A relay to meet various high power loads to ensure the correct line. LED, LED status description: LED: Off means the relay is off, and opening means the relay is off Number: Display "- - - ", 1, check if temperature sensor 2 is missing or damaged, heating mode, high temperature protection 3, low temperature cooling mode protection. In protection mode, the relay is automatically disconnected. Using the keys: The temperature control panel has three buttons, the button + button - the SET button Button +: achieve fast cumulative value Key: - Fast decreasing value SET button SET: temperature setting temperature and operation mode interface query interface parameter setting interface Press SET during SET for different time, the corresponding digital temperature limit will flash, you can set the upper and lower temperature by key addition and subtraction. Automatically save data after 8s setting or press data three time