Xylem-McDonnell & Miller PSE-802-24 Lwco 24V (153927)

 The Xylem-McDonnell & Miller PSE-802-24 Lwco 24V is a tiny electronic safety device built primarily for steam boilers. It functions as a low water cut-off (LWCO), turning off your boiler if water levels drop below acceptable bounds, averting potentially catastrophic overheating and damage. This 24V unit has an LED indicator and test switch for simple operation and status monitoring, as well as an auto-reset capability that will restart the device automatically whenever safe water levels are restored. Its 3/4" MIP connectors guarantee interoperability with many models of steam boilers. With a seamless connection to your HVAC system, the PSE-802-24 shields your boiler from expensive damage brought on by low water levels.