Applicable to various spatial temperature control, water temperature control, incubators, etc. Automatic heating or cooling according to the temperature. With 3 display windows (Start/ In Progress/ Stop) Measurement range of temperature: -9 to 99 Refresh rate: 0.5S Specification: Model: XH-W1401 Size: Approx. 78x51mm/ 3.07x2.01 inch Accuracy of measuring temperature: 1 Control accuracy: 1 Input voltage: DC 12V Environmental requirement: -10 to 60/ Humidity 20% to 85% Measuring input: NTC(3950-10K 1% ) Waterproof type sensor Output type: relay output 3 Digital display windows: The red one in the middle is the currently detected temperature. The green one on the left side is set to start the temperature. The green one on the right side is set to stop the temperature. Package Includes: 1 Piece of Sensor Module