... ,mmHg,ozin2,FtH2O,cmH2O,kgcm,Additional features . 1.Product Name:Digital Manometer(1890)The device measures Gauge/Differential Pressure from -55H2O ... ,Kpa,InHg,mmHg,ozin2,FtH2O,cmH2O,kgcm,Additional features include Data Hold and Auto Power off disabled.Careful use of this ...