Measure: Pa, hPa, mbar, mmH2O, mmHg, inHG, inH2O, psi
Relative altitude
Range: 300~1, 200 hPa, 120.4~481.8 inH2O
Resolution: 0.1 hPa, 0.1 inH2O
Special function: Auto power off; Data hold; MAX and MIN; Back light;
Battery: 1.5V AAA x3
Complete with pouch case and cover