The thermostat module controller has inputs from sensors, keys, LED displays and relays. It can be reprogrammed for control, timing or counting. Temperature measurement range: -50~110C. Control precision: 0.1C. Input power (DC): 12V; Measuring input: NTC (10K 0.5%); Waterproof sensor: 0.5m; Output: 1 relay output, capacity: 10A; Power consumption: static current: 35ma; Current: 65 ma. Electronic digital thermostat with 3-bit LED display, red, very bright. Heating and cooling operation to facilitate control of equipment and devices. The output is electronically controlled by a microprocessor, which guarantees the highest precision of intervention and excellent resolution of the reading temperature. The NTC probe is waterproof and allows you to control the temperature even of fluids, allowing controlled heating or cooling. Specifications: Dimensions: 48.5 * 40 * 15.8 mm Temperature regulation mode: ON/OFF Temperature range: -50-110 degrees < p>Resolution: When the temperature is 0.1, the resolution is -9.9~99.9, the other temperature segment is 1. Control accuracy: 0.1 Hysteresis accuracy: 0.1 Refresh rate: 0.5s High temperature protection Power supply voltage: DC 12V Static current: less than 35mA, pull current less than 65mA Output voltage: DC 12V Power of output: 20A relay Measurement input: NTC (10K 0.5%) waterproof sensor Environmental requirements: -10-60 ; Humidity: 20 to 85% Instructions for use: Plug in the power supply and equipment, the measurement temperature is displayed, Press On the "adjust" button, press "+" or - " to set the desired temperature (press "+" or - "" to quickly increase or decrease), Press "SET" to confirm the setting and return, the controller automatically carries out the on/off relay. The output of the thermostat is a 10A relay, which responds to a variety of high power. LED indicator: LED off indicates that the relay is off; Lighting indicates that the relay is closed. Digital LED tubes: "LL" indicates that the sensor is open, "HH" indicates that the relay is out of range, the relay will be forcibly disconnected; "-- "indicates high temperature alarm. Long press "SET" button to enter main menu settings, Press "+" or - "to switch between P0-P6, then long press to "SET" or 10 seconds without keys to confirm the setting and return. Return to factory settings ----- When power off, press and hold the "+" "-" key . Then turn on, it will display "888" to restore factory settings. Package includes: 2 PC 12V DC Digital Temperature Control Board