Digital Manometer -20 in wc to 20 in wc

Digital Manometer Maximum Pressure 20 in wc Minimum Pressure -20 in wc Accuracy +/-1.5 Percent of Full Scale Process Connection Size 3/16 in 1/4 in Process Connection Type Hose Barb Batteries Included Yes Digital Display Features 4 Digit LCD NIST Traceable Certificate No Series 476A Application Air Compatible Gases Auto Power Off Yes Batteries Required Yes Battery Type 9V Calibration Certificate Included No Display Units bar in Hg in wc. kPa mbar mm Hg mm wc psi