Power supply: 110-220VAC 10%, 50/60Hz (or DC12V / DC24V) Temperature range: -50+110 Resolution: 0.1 Accuracy: 1 Relay output contact capacity: heating: 10A/240VAC, cooling: 10A/240VCA Sensor h type: imported NTC sensor, line length 1 meter Shell material: gray ABS flame retardant plastic shell Net weight 120g Gross weight 140g Press Set for 5 seconds to enter the internal parameter setting, press up and down to switch P0...P8 and press Rst to confirm and return.Instructions for use:Please connect the power supply according to the parameters and circuit diagram, and connect the cooling or heating equipment to the output end.Enter the internal setting to select heating (enter P0 and select H) or cooling (enter P0 and select C) mode as needed.How to set the temperature: Press Set once and the screen flashes, press up and down to set the required temperature, and press Rst to confirm and return.OUT indicator on the panel: flashing indicates cooling or heating start delay, and constant light indicates output.Digital tube: display LLL means the sensor is open; display HHH means the thermostat will be forced to power off if the measurement range is exceeded; display --- means high temperature alarm.