Digital Vacuum Meter

Digital Vacuum Meter – ST-VG90

The ST-VG90 Digital Vacuum Meter is a precision instrument designed for accurate vacuum measurement in refrigeration, HVAC, and laboratory applications. It is portable, battery-powered, and features intelligent functions for efficient and safe operation.

Features:

• Measurement range: 99999 Pa ~ 0.1 Pa, 740000 ~ 0.75 Micron

• Accuracy: ±5% (0.1 Pa ~ 1000 Pa at 20℃)

• Resolution: 0.1 Pa (<10 Pa), 1 Pa (<100 Pa), 10 Pa (<1000 Pa)

• Units: Pa, mBar, mmHg, mTorr, InHg, Microns

• Target vacuum alarm for precise monitoring

• One-key full-scale calibration

• System leak detection function

• Portable design with battery display and automatic shutdown after 10 minutes of inactivity

• Buzzer alarm (90 dB, shuts down after 10 sec)

• Inlet port: 7/16″–20UNF (1/4″ SAE)

• Maximum overload pressure: 0.5 MPa / 72 PSI

• Operating temperature: -5℃ ~ 50℃ (-23℉ ~ 122℉)

• Battery life: up to 40 hours (3×AA)

Applications:

• HVAC system vacuum testing

• Refrigeration system maintenance

• Laboratory vacuum monitoring