... , 1/4 NPT Standard Stainless Steel, Standard : Psi, Bar, Kfg/cm^2 , KPa. Digital Manometer/ Pressure Gauge SPG-025Specification:Pressure range ... NPT Standard Stainless SteelTwo Interface: Bottom & BackStandard : Psi, Bar, Kfg/cm^2 , KPaVacuum: KPa, mBar, inHg, mmHgAccuracy: ±0.5% F.S ... to NISTContinuous reading v.s. Peak and hold selectbale SPG-025 Digital Manometer/ Pressure Gauge