Dwyer Instruments A-303 Pressure Tip 321702-401 Use a multimeter to check

Use a multimeter to check for continuity across the overload terminals

Includes a standard 1/4" barbed connection for easy hose attachment

Corrosion Resistance: All-aluminum construction prevents the galvanic corrosion often seen in bi-metal coils

Can this be used with R410A systems

providing the thermal margin needed for reliable performance in fluctuating mechanical environments

Dwyer Instruments A-303 Pressure Tip 321702-401 Use a multimeter to checkThe Dwyer Instruments A 303 Pressure Tip is an essential diagnostic component for HVACR professionals requiring precision static pressure measurement in ductwork and air handling systems. Engineered with a 4 inch insertion depth, this portable static pressure tip is optimized to bypass boundary layer turbulence, ensuring accurate readings from the core of the airstream. The probe features four radially drilled . 040 inch sensing holes, a design