Extech PS101 1 Max psi, 0.3% Accuracy, Differential Pressure Manometer

2 Max psi, +/-0.3% FS% Accuracy, Differential Pressure Manometer 2 Maximum PSI, 55.4 Inch Water Column

2 Max psi, 0.3% FS% Accuracy, Differential Pressure Manometer -1 to 0.5 Maximum PSI, -13.85 to 13.85 Inch Water Column

5 Max psi, +/-0.3% FS% Accuracy, Differential Pressure Manometer 5 Maximum PSI, 138.3 Inch Water Column

29 Max psi, 2% Accuracy, Differential Pressure Manometer

2 Max psi, 0.3% Accuracy, External Thread Differential Pressure Manometer 1/2 Inch Thread, 2 Maximum PSI, 52 Inch Water Column, Low Differential Pressure Switches