Features: It is equipped with refrigeration, heating, alarm output mode conversion function User parameters and administrator parameters were set respectively, which is convenient for ordinary users to operate. It also has the functions of adjustable compressor delay, temperature correction, fault alarm and compressor running according to preset program after sensor failure. It is a simple control and alarm product that suitable for refrigeration, seafood machine, water heater and other equipment and places. Using digital tube display, data display is clear, data reading is fast and reliable. Specification: Condition: 100% Brand New Item Type: Temperature Controller Material: ABS Color: As shown in the picture Mounting Hole Size: Approx.70.5x28.5mm / 2.8x1.1in Operating Environment Temperature: -30 ° C ~ 80 ° C Relative Humidity: No more than 85% (non-condensable) Power Supply Voltage: 220VAC ± 10% Power Consumption: Less than 5W Temperature Range: -40 ° C ~ 99 ° C Temperature Control Range: -40 ° C ~ 70 ° C Resolution: 1 ° C Relay Contact Capacity: 10A/250VAC/30VDC Net Weight: Approx.161g/5.7oz Package List: 1 x Temperature Controller 1 x Instruction Manual 1 x Thermostat Cable .