Home Automation Kits descriptions We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Digital Thermostat Heating Refrigeration Temperature Control Switch Module. Specifications: Dissipation Power:1.9 Inches & Under Supply Voltage:5V Model Number:XY-T01 Operating Temperature:-40-+85 is Customized:Yes Package:Module Type:electronic Module Unit Type:piece Package Weight:0.02kg (0.04lb.) Package Size:5cm X 5cm X 5cm (1.97 Inch X 1.97 Inch X 1.97 Inch) Set Temperature ---- SetT; Backlash Temperature-----BackT; 1.Heating Mode /'H/': When Temperature Less Than Equal SetT - BackT ;Relay Conduction, Heating Equipment Begin to Work; When Temperature Greater Than Equal SetT, Relay Disconnect, Heating Equipment Stop Work; 2.Refrigeration Mode /'C/': When Temperature Greater Than Equal SetT+BackT ;Relay Conduction, Refrigeration Equipment Begin to Work; When Temperature Less Than Equal SetT ;Relay Conduction, Refrigeration Equipment Stop Work; 3.High Temperature Alarm /'ALA/': When Temperature Greater Than Equal Alarm Temperature, The System Opens the Sound and Light Alarm, and Disconnects the Relay, Any Key Stops the Sound Light; 4.Delay Start 'OPH/': When a Normal Heating or Refrigeration Work is Done, the System Starts to Time T, and Only After the Tgreater Than Equal OPH, the System Can Carry out the Next Round of Heating or Refrigeration Work; Color:as Shown Material:plastic Package Contents: 1* XY-T01 Temperature Controller Module Only the Above Package Content, Other Products Are Not Included. Note: Light Shooting and Different Displays May Cause the Color of the Item in the Picture a Little Different from the Real Thing. The Measurement Allowed Error is +/- 1-3cm.. Products number : SOMONO95986