Mcdonnell & Miller (176234) 120volt Manual Reset Hot Water Boiler Low Water Cutoff.

The Series 751 probe type LWCOs provide protection against low water conditions for commercial and industrial applications. These controls are fully CSD-1 compliant and are primarily used as LWCOs on hot water heating boilers.

• Green LED indicates power On
• Red LED indicates Low Water
• Test button
• Meets requirements of ASME Standards CSD-1
• No lock out with loos of power if probe is in water
• 20,000 ohms probe sensitivity