<p>The W1209 is an incredibly low cost yet highly functional thermostat controller. With this module, you can intelligently control power to most types of electrical device based on the temperature sensed by the included high accuracy NTC temperature sensor. Although this module has an embedded microcontroller no programming knowledge is required. 3 tactile switches allow for configuring various parameters including on & off trigger temperatures. The current temperature is displayed in degrees Centigrade via its 3 digit seven segment display and the current relay state by an on board LED.</p> <p> </p> <p>P0 :Cooling / Heating; Range: C/H; Default: C</p> <p>P1 :Hysteresis Setting; Range:0.1-15; Default: 2</p> <p>P2 :Highest Setting Limit; Range:110; Default: 110</p> <p>P3: Lowest setting Limit; Range:-50; Default: -50</p> <p>P4 :Temperature Correction; Range:-7~7℃; Default: 0℃</p> <p>P5: Delay Start Time; Range:0-10 Minute; Default: 0</p> <p>P6: High Temperature Alarm; Range:0-110; Default: Off</p> <p>When the Thermostat is power off, long press "- or +", you can restore the factory settings</p> <p> </p> <p><b>Specification:</b></p> <p>Temperature Control Range: -50 ~ 110℃</p> <p>Resolution at -9.9 to 99.9: 0.1℃</p> <p>Resolution at all other temperatures: 1℃</p> <p>Measurement Accuracy: 0.1℃</p> <p>Control Accuracy: 0.1℃</p> <p>Refresh Rate: 0.5 Seconds</p> <p>Input Power (DC): 12V</p> <p>Measuring Inputs: NTC (10K 0.5%)</p> <p>Waterproof Sensor: 0.5M</p> <p>Output: 1 Channel Relay Output, Capacity: 10A</p> <p> </p> <p><b>Power Consumption:</b></p> <p>Static Current: <=35mA</p> <p>Current: <=65mA</p> <p> </p> <p><b>Environmental Requirements:</b></p> <p>Temperature: -10 ~ 60℃</p> <p>Humidity: 20-85%</p> <p> </p> <p><b>Dimensions:</b></p> <p>48mm x 40mm x 14mm <p><br></p> <p><b>Package Included:</b> <p>2 * W1209 Temperature Controller Module <p>2 * Hard Plastic Case