Digital Industrial Vacuum Gauge High Accuracy Backlit Display 0-55bar Vacuum Pressure Gauge Item Type: Digital Vacuum Pressure Gauge Material: ABS Unit: Pressure Unit: Bar, psi, Kpa, Mpa, kgf/cm² Temperature Unit: ℃, ℉ Vacuum Unit: inHg Sensor: Built In Pressure Sensor Detection Frequency: 1 Second Freezing Medium Types: R22, R32, R134a, R290, R404A, R407A, R407C, R410A, R427A, R434A, R442A, R600a, R1234yf, R448A, R450A, R454B Interface: 2x1/4in SAE Battery: 3.7V Built In Rechargeable Li Ion Battery 1500mAh x 1 (Included) Pressure Range: 0-55 bar, 0-800 psi, 0-5500KPa, 0-5.5 Mpa, 0-60 kgf/cm² Vacuum Range: -29.5 to 0inHg Operating Humidity: 10-90%RH Maximum Overload Pressure: 75 bar, 7500Kpa, 7.5Mpa, 1087 psi, 76.5 kgf/cm² Resolution: Pressure: 0.1 psi, 0.1 bar, 1 Kpa, 0.001 Mpa, 0.1 kgf/cm² Vacuum: 0.1 inHg Measurement Accuracy: Pressure: ±2 psi, ±0.2 bar, ±20 Kpa, ±0.02 Mpa, ±0.2 kgf/cm² Vacuum: ±1 inHgVacuum