2 Sets 50-110 ℃ 12V W1209 Digital Thermostat Temperature Control Switch Sensor Usage: 1. Connect the power supply and load to supply power to the controller. 2. At this time the display for the measured temperature, press the SET key once, the display temperature blinking, press +- to set the desired temperature, set the completion of the SET confirmation once to return. 3. At this time, the controller automatically performs relay on and off according to the setting! 4. The output of this thermostat is 10A relay, which can meet all kinds of high power loads, please make sure the line is correct. Status Description: Indicator light: off indicates that the relay is disconnected, always on indicates that the relay is closed. Digital tube: display LL for the sensor open circuit; display HH for beyond the measuring range of the thermostat will be forced to disconnect the relay; display --- for high temperature protection. Parameter function description: Press and hold SET for 5 seconds to enter the main menu setting, press +- to switch PO.... P8 Long press SET or 10 seconds without key action, the controller automatically confirms return. Specification: Temperature control range: -50~110°C Temperature measurement accuracy: 0.1° C Refresh frequency: 0.5 S Model: XH-W1209 Size: 48.5*40.1*15.8mm Net weight: 22.3g High temperature protection: 0~110° C Input power supply: DC 12V Measurement input: NTC (10K 0.5%) waterproof sensor Output range: 1 way 10A relay Return accuracy: 0.1°C Environmental Requirements: -10~60°C 20%-85% humidity Power Consumption: Static Current: <35MA Suction Current: <65MA Display type: 0.28 inch three digit tube Resolution: -9.9~99.9 when 0.1℃ other temperature range 1℃ Package Included: 2*sensor 2*Digital display thermostat Note: 1. Please allow 1-3 mm error due to manual measurement. Please make sure you don't mind before ordering. 2. Please allow 1-3g weight error. Please make sure you don't mind before ordering. 3. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!