Differential Pressure Gauge, Scale Type Pressure, Pressure Range Minor Div. 0.01 In. WC, Rated Total Pressure 20 In. Hg to 25 psig, Relay Type 2 DPDT, Rated 10 A@28 VDC, 10 A @120/240 VAC, Full Scale Accuracy ( Percent) +/-3, Connection Size NPT (In.)...