This Burnham Commercial Low Water Cut-Off (LWCO) Probe is a critical safety device designed for use in commercial and industrial boilers. The probe, which has a 3/4 inch National Pipe Thread (NPT) fitting, monitors the water level within the boiler. If the water level drops below a predetermined point, the LWCO probe sends a signal to shut off the fuel supply, preventing potential damage or dangerous conditions that could occur if the boiler continues to operate without sufficient water. The Burnham Commercial LWCO Probe is made from durable materials to withstand high temperatures and pressures commonly found in boiler systems.