Dwyer Instruments DHC-003 Pressure Switch 321702-401 Is the coil included with

Is the coil included with the assembly

How do I know if my current manifold is failing

Can I reuse my existing O-ring during a float inspection

and the crank arm for a standard 1/2" damper shaft

Dwyer Instruments DHC-003 Pressure Switch 321702-401 Is the coil included withThe Dwyer DHC 003 is a high precision differential pressure controller designed for sensing and controlling low pressure air and non combustible gases. This unit features a sensing range of 0 to 0. 5 inches water column, making it an essential component for monitoring filter status, duct static pressure, and fan proving in critical HVAC applications. Built with a solid state sensor and an integrated SPDT relay, the DHC 003 delivers superior