Maximum Overload Pressure: 72psi/0.5Mpa Resolution: 0.01 (Less than 10pa), 0.0001 (Less than 10mbar), 0.0001 (Less than 10mmhg), 1(Less than 30000 ) Measurement Accuracy: 2-100Pa (Digits 5%) Operating Temperature: 0-50(32-122) Units: Pa, mBar, mmhg, Microns Refresh Rate: 0.5 Seconds Interface: 1 * 7/16-20UNF Sensor: 1 * Sensor Automatic Shutdown: 10 Minutes Power Supply:2 x AA battery (Not included batteries) Backlight:20 Seconds Beep Horn:90 DB(closes after 10 seconds) Scope of application: atmospheric environment (cannot be used for measurement in other environments such as refrigerants) Note:due to different production batches, the printed labels are different, which does not affect the use. Color:Blue Material:ABS Package Contents: 1 * Digital Vacuum Gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.