1. Multiple working modes: There are multiple working modes, different wiring methods are available. Optional functions include single wire (valve stops while fan does not stop) or double wire (valve stops and fan stops) 2. External embedded installation: Adopt external embedded installation, standard 86 type installation cassette, easy to install 3. Long service life: The thermostat contact is more than 100,000 times at 220V and full load, and the manual operation switch is more than 60,000 times. 4. Stable performance: Come with beautiful appearance, comfortable hand feeling and stable performance. The temperature sensing component adopts precise metal bellows 5. Various rocker switches: rocker switches are power switches (ON or OFF); operating mode switch (HOT or COLD); FAN Wind Speed Switch (Low Speed 1, Medium Speed 2, High Speed 3) Specification: Item Type: Central Air Conditioning Thermostat. Material: ABS Sensor: AC801 A: Inflatable Diaphragm, AC801 C: Thermistor Voltage: