Instructions for use:_x000D_ Connect the power supply and equipment, the measuring temperature is displayed, press the SET button, press + or to set the desired temperature (long press + or to quickly increase or decrease), press SET to confirm the setting and return, controller automatically performs the relay ON/OFF. the thermostat output is 10A relay, meet a variety of high-power loads,_x000D_ LED Indicator: LED off indicates the relay off; Lighting, indicates the relay is closed._x000D_ Digital LED Tubes: LL indicates sensor open, HH indicates over range, the relay will be forcibly disconnected; indicates high temperature alarm_x000D_ Long press the SET button to enter the main menu settings, press + or to switching between P0-P6,then long press SET or 10 seconds without keystrokes to confirm the setting and return._x000D_ Instructions for use: Connect the power supply and equipment, the measuring temperature is displayed, press the SET button, press + or to set the desired temperature (long press + or to quickly increase or decrease), press SET to confirm the setting and return, controller automatically performs the relay ON/OFF. the thermostat output is 10A relay, meet a variety of high-power loads, LED Indicator: LED off indicates the relay off; Lighting, indicates the relay is closed. Digital LED Tubes: LL indicates sensor open, HH indicates over range, the relay will be forcibly disconnected; indicates high temperature alarm Long press the SET button to enter the main menu settings, press + or to switching between P0-P6,then long press SET or 10 seconds without keystrokes to confirm the setting and return.