Our Digital Vacuum Gauge are available in four calibration modes. This Vacuum Gauge in the normal mode, long press the "HOLD button" to enter the calibration mode. .This Vacuum Gauge in the normal mode, long press the "HOLD button" to enter the calibration mode. Then you can use the "DIF key" to switch the calibration mode.

HVAC vacuum test gauges have more conversion units compared to other products. There are 13 conversion units in total (mmHg, inHg, umHg, ftH₂O,cmH₂O, inH₂O, Pa, Kpa, mbar, bar, Kg/c㎡,psi, oz/in²), you can convert the units according to your working requirements to cope with complex working problems.

The large LCD display with backlight enables accurate reading of measurement data even in dimly lit environments.

This HVAC Micron Gauge Vacuum has normal mode and monitoring mode. The default mode is normal mode and short press the "DIF” for monitoring mode. In monitoring mode, if the current pressure is lower than the designated pressure, an alarm will run. When pressure is higher than the set pressure, the alarming will automatically disappear, or pressing any key, or automatically disappear after 30s. The monitoring mode allows you to control the vacuum pressure more easily.

The large HD screen has a backlight function, which allows you to work in dim light environment. The vacuum gauge has a built-in buzzer, which can be custom set to achieve a reminder alarm. At the same time the design of the rubber handle, it has a good sense of comfort, but also not easy to slip off. Automatic shut-off for 10 minutes of unoccupied use can help you save power.