It is specifically designed for Weil McLain EG (sizes 30-75) and EGH (sizes 85-125) gas-fired boilers

This specific model is designed for low-pressure fuel gas service

Using a digital manometer and a multimeter

Service Accuracy: ASME Type B rated sensing elements ensure precise readings for critical diagnostic and balancing tasks

and WMC24-1 models

Dwyer Instruments 1910-5 Pressure Switch R-448A It is specifically designed forThe Dwyer Instruments 1910 5 Pressure Switch is a professional grade solution for monitoring low differential pressure in HVAC systems and industrial processes. This Series 1900 compact pressure switch features an adjustable set point range of 1. 40" to 5. 5" w. c., providing precise control for air filter monitoring and fan status indication. Built with a Single Pole Double Throw (SPDT) configuration, this switch allows for flexible wiring to