Feature:1. WATER LEVEL RELAY CONTROL: The water level of the pool or water tower is controlled by the high current relay, very useful2. HIGH PERFORMANCE: Possess the characteristics of small size, simple wiring, low power consumption, large switching capacity, strong interference resistant, and high functional stability3. AUTOMATIC START STOP: Stably realize the automatic start of the water pump to pump water when the pool or water tower is short of water, and automatically stop the pump when the pump is full4. SWITCH TYPE CONTROLLER: This is a switch type liquid level controller, the recommended motor power is within 1000W, which is a wide range5. RELIABLE PCB MATERIAL: Adopt good quality PCB materials, with reliability and miniaturization, good maintenance and interchangeabilitySpecification:Item Type: Liquid Level Switch Sensor controllerMaterial: PCBPower Supply Voltage: DC12VProduct Type: Switch type liquid level controller(12V supply voltage, the load can be non 12V or is the AC load)Control Motor Power: Within 1000W is recommendedAbout The Probe: The probe is a weak current below 12V. Be sure to connect the upper, middle and lower wires, not just connect two string. The probe can buy a special probe, or you can use the ordinary wire to strip the wire end by 3-5cm, making it a bare wire for direct sensing (the product does not include a probe!)Package List:1 x Liquid Level Switch Sensor controller