Specifications:
Model: W1209 With Case
Dimensions: 48.5 * 40mm
Temperature Control mode: ON / OFF
Temperature Range :-50 - 110 degree centigrade
Resolution: When temperature is 0.1 degree, the resolution is -9.9~99.9, other temperature segment is 1 degree.
Control Accuracy: 0.1 degree
Hysteresis Accuracy: 0.1 degree
Refresh Rate: 0.5s
High Temperature Protection 0 - 110 degree centigrade
Supply Voltage: DC 12V
Static Current: Less than 35MA, attract current less than 65MA
Output Voltage: DC 12V
Output Power: 20A relay
Measurement Input: NTC (10K 0.5%) Waterproof Sensor
Environmental Requirements: -10 - 60 degree centigrade; Humidity 20% - 85%

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 overrange, 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.

Package Included:
2 * W1209 12V DC Red Digital Temperature Controller Board With Case