HABOTEST HT636 Manometer

Measuring Range: ±5PSI Can withstand maximum pressure: 10PSI Accuracy: ± 0.3% FS Repeatability: ± 0.2% (Max +0.5% FS) Linear/ Posterior: ± 0.29% FS Response Time: 0.5s Pressure Unit: inH2O; PSI; mbar; kPa; inHg; mmHg Features: LCD Display, Measurement of maximum, minimum, and average values, Display low battery symbol, When the hose is open to the surrounding environment, press and hold the "ZERO" button for more than 2 seconds to reset the instrument diplay to zero, You can set the automatic shutdown time (5 - 60 minutes), 3 X 1.5V AAA Battery