Features: This thermostat can control electric motorized valves, electric heating valves, solenoid valves, heaters, electrothermal film, carbon crystal. it uses MCU of high reliability for strong anti-jamming performance. Set different working modes through light touch button operation. Relay output, using terminal block for convenient connection. Support temperature calibration function and antifreeze function. The housing is made of flame retardant material PC + ABS. There is a big LCD display for clear reading. The thermostat passed high safety and high reliability test. WiFi phone connection easy to operate, press a key to connect. Phones interface supports six languages: Chinese, English, Italian, French, German, and Spanish. It can be used for Alexa, with voice function. Specifications: Color: Black, White (Optional) Working Voltage: AC100~230V, 50/60HZ Load Current: 16A (electric heating) Working Environment Temperature: 0~90℃ Range of Temperature Adjustment: 5~35℃ Range of Temperature Display: 0~40℃ Temperature Control Accuracy: ±0.5℃ Self-consumption of Power: <0.3W Temperature Sensor: NTC Weight: 253g(approx.) Package Includes: 1 x Thermostat 1 x NTC Sensor 2 x Screws 1、This thermostat can control electric motorized valves, electric heating valves, solenoid valves, heaters, electrothermal film, carbon crystal. 2、it uses MCU of high reliability for strong anti-jamming performance. 3、Set different working modes through light touch button operation. 4、Relay output, using terminal block for convenient connection. 5、Support temperature calibration function and antifreeze function.