General Pressure Switch, 1/4 in. NPT Male, 9.6-32 VDC, 4-Pin, M12 Micro-ConnectorTurns off your pump or controller and activates venting once the lube system reaches the desired pressure level. Durable design allows operation in harsh environment. Easy to visually adjust line pressure and reset pressure to ensure your lube system has vented properly LED lights visually display pressure switch functions Modern 4 pin M12 micro connector easily connects to the G3 and other controllers Moisture resistant and factory set to ensure