Hydrolevel 45-551 550Sv 120V LWCO Manual Reset with Test Button and Light

Hydrolevel electronic low water cut-offs feature a shortened probe designed for mounting in standard reducing tees, utilizing water as a conductor to complete the circuit between the probe and boiler shell for reliable water level monitoring. When water contacts the probe the circuit completes, but when water drops below the probe level the circuit opens and contacts de-energize the burner to prevent dangerous low water conditions. The system provides reliable electronic operation with low maintenance requirements, easy installation in standard fittings, cost-effective ownership, and 100% factory testing to ensure dependable protection for steam and hot water boiler applications requiring compact probe configurations, 160 psi, manual, 120v, 20 second burner on delay