Manushre Manas EnterprisesInstructions 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 the "SET" to confirm the setting and return, controller automatically performs the relay ON/OFF. press " + or - " to switching between P0-P6. Long press the "SET" button to enter the main menu settings 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. then long press "SET" or 10 seconds without keystrokes to confirm the setting and return. Digital LED Tubes: "LL" indicates sensor open, "HH" indicates overrange, the relay will be forcibly disconnected; "---" indicates high temperature alarm.