Width x Depth x Height: 64 x 28 x 95mm Power supply: 2 AA alkaline batteries (included) HOLD function AUTO OFF function Maximum allowable pressure (hPa): 100 Measurement range (hPa): -29.9 to 29.9 Resolution (hPa): 0.01/0.1 Unit switching: kPa, HPA,MBAR准确性:F.S.±1%电源(V):2 AA碱性电池(随附)