Temperature range :-50-110 ℃Dimensions: 48.5 * 40mmTemperature control mode: ON / OFFResolution：When temperature is 0.1℃， the resolution is -9.9~99.9， other temperature segment is 1℃Control accuracy: 0.1 ℃Hysteresis accuracy: 0.1℃Refresh rate: 0.5SHigh temperature protection： 0-110℃Supply voltage: DC 12VStatic current: ≤ 35MA， attract current ≤ 65MAOutput voltage: DC 12VOutput power: 20A relay Measurement input: NTC (10K 0.5%) Waterproof SensorEnvironmental requirements: -10 ~ 60 ℃ ，Humidity 20% -85%How to use:Connect the power supply and the load， you can supply to the controller，Is displayed as a measured temperature，Press the SET button， the display flashes the temperature，Press - to set the desired temperature，After setting press SET to confirm return，The controller automatically performs the relay by setting off!Lights， LED status descriptions:Indicator: Off The relay is switched off， Always indicate the relay is closed.LED: Shows LL is the sensor open， showing ?HH is out of range， the thermostat will be forced to close the relay， the display --- as high temperature protection.Parameter Function:Long press SET 5 seconds to enter the main menu settings， press the - toggle P0 ... P8 long press SET or 10 seconds of no key activity confirmed their return to the controllerPackage included:1x digital temperature control switch