K4581 Pressure Gauge 0 to 1 In H2O

K4581 Differential Pressure Gage Pressure Range 0-1 In WC Relay Type 2 DPDT Rated 10 A@28 VDC 10 A @120/240 VAC Accuracy +/-2% @70 Deg F Full Scale Pressure Range Minor Div 0.02 Rated Total Pressure 20 In Hg to 25 PSIG Velocity Range 500-4000 FPM Gage Connection 1/8 In NPT Power Requirement 110 VAC @50/60 Hz Dial Size 4 In Compatible With Air and Non-Combustible Gas Ambient Operating Range 20 to 120 Deg F CE/UL/CSA Includes Instructions