Utilize overseas high-quality dished dual metallic piece as temperature gathering element, install thermal protector at the temperature sensitive position of water tank, collect the temperature changes of water tank on real-time basis and take the action of safe protection to water tank of car.

Tecnical parameter:
1. Electrical performance: DC0-50V, AC250V 50Hz 12A
2. Insulated resistance: More than 10M??(normal)
3. Contact resistance: Less than 20m??(initial value except the resistance of the lead)
4. Voltage resistant: 50Hz 1000V, 30s(normal)
5. Durability: 100000cycles(at rated load)