Features ★ Coolant Level Sensor: When the water level of the water tank is lower than the probe position of the alarm sensor, the sensor outputs the switch signal to the generator control device. ★ For Stable Operation: The engine coolant level sensor can better promote low water level alarm and shutdown function for stable and safe working performance as well as higher efficiency. ★ The Reliable Feature: The normally open water tank level sensor has 5-35V DC working voltage, triode open collector OC output, and 100mA maximum output current during the operation. ★ Broad in Application: Can be used in equipment and devices that require water level alarms, and is also suitable for non corrosive liquid with similar electrical resistivity like water. ★ Simpler Installation: Designed to have 1/2NPT installation thread, the engine coolant sensor with a light weight and a compact size is very convenient to install within several minutes. Specification: Item Type: Coolant Level Sensor Installation Thread: 1/2NPT Working Mode: NO, normally open. Working Voltage: 5-35VDC Output Mode: Triode open collector OC. Maximum Output Current: 100mA Output End Maximum Working Voltage: 35V DC Package List:1 x Coolant Level Sensor 6 x Accessory Package List 1 x Coolant Level Sensor 6 x Accessory