1、Resistance Control: The higher the water temperature, the lower the resistance value. The lower the water temperature, the greater the resistance value. 2、Alarm: When the water temperature reaches the alarm temperature, the alarm light is on. When the water temperature drops, the alarm lights go out. 3、Quick Response: When the alarm temperature is reached at 96°C, the alarm light is on and the response time is about 1 second, the measuring range is 0‑120°C. 4、Installation: There are 2 wires, one connected to the water temperature meter, displaying the water temperature parameters, and one connected to the alarm switch. 5、Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability.