YYW-1 5V/12V/24V DS18B20 Temperature Sensor Switch Temperature Detection Relay Switch Controller Module

Features Temperature measurement range 40 0 125 0 degrees Celsius Upper and lower limit temperature values ​​can be set 0 125 degrees Celsius Measurement accuracy is 0 1 degrees Celsius press K3 in standby mode to turn off display for a long time reduce power consumption The relay output is a passive contact no power output can control the line on and off within 5A The delay time can be set to prevent the output from oscillating and causing damage to the entire circuit For example if the temperature is higher than 30 C the relay is disconnected After the delay is added the relay will not be disconnected immediately If the temperature is lower than 30 degrees Celsius again during the delay period the relay will not operate Only the temperature is higher than 30 degrees Celsius Set the delay time to disconnect Wiring Port Description DC power supply negative inputDC positive input of power supplyNC Relay normally closedNO Relay normally openCOM relay common Description of the Function P 1 Cooling control When the measured real time temperature is lower than T1 the relay is closed and the relay is disconnected above T2 P 2 Heating control When the measured real time temperature is higher than T2 the relay is closed and the relay is disconnected below T1 P 3 Constant temperature control When the measured real time temperature is between T1 and T2 the relay is closed and the relay is disconnected in other cases P 4 Constant temperature