Digital Pressure Manometer Pressure Meter with Pressure Zero Correction Function Backlight Display Time Setting 9V 6F22 BatteryFeatures:The instrument is equipped with a TPU sheath with a simple hose connection device. Power supplied by 1 pc 9V 6F22 battery.Measuring negative/positive/differential pressure, with the following optional units of measurement: bar, ozin², psi, inHg, mbar, mmHg, cmH2O, ftH2O, inH2O, Kgcm² and Kpa, a total of 11 common units.It is suitable for detecting waste gas negative pressure, the engine intake manifold vacuum negative pressure, ventilation duct system pressure measurement, and line pressure stress tests in the troubleshooting of the system.Manual and auto power off to meet the demand of users of different field measurements.The instrument is simple and easy to use with clear reading value, suitable for the automobile repairing industry and HVAC industry.Specifications:Item Name: Digital Pressure ManometerMain Material: PlasticMeasuring Pressure Type: Positive/Negative/Differential pressureMeasurement Range: ±30Psi/206.8KpaPressure Unit: bar, ozin², psi, inHg, mbar, mmHg, cmH2O, ftH2O, inH2O, Kgcm², KpaAccuracy: ±1%F SRepetitive: ±0.25%F SResponse Time: ≈0.525±2Pressure Connection: 1pcs 1/8”( 3.18mm ) quick couplingMulti-function: MAX/MIN/AVG/DIFData Is Stored: 32 SetPower: 9V 6F22 Batteries*1PCSAuto Power Off: Auto Power Off/ Manual ShutdownColor: BlueSize: 155*80*32mmPackage Information:Package Size: 24*21*5.5cmPackage Weight: 550gPackage List:1 * Pressure Meter1 * Hose1 * 9V 6F22 Battery1 * Rubber Head1 * Metal Quick Connector1 * PP Tool Box Packing1 * Product Manual