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The Bullseye Precision Gauge is the ideal portable vacuum gauge to serve many applications. This patented vacuum gauge offers Graphical Displays and graphics supporting real-time analytics (Leak, Pump, Outgas, Stable)

  • Visual graphing feature right on the display
  • Display pinpoints the root of the problem so you get it right the first time
  • Put it anywhere with its magnet and kickstand
  • Options: Rugged carrying case designed for instrument, back-up sensor and these adapters that can change the NPT to a KF25 or KF16 vacuum interface adapters
  • Sensor (Probe) Replacements: This gauge is paired with the Thermocouple Plus/531 Equivalent Sensor, but works with Agilent 531 or 536 sensors as well if you are looking for a more robust sensor option

Numeric & Graphical Displays

See vacuum readings in either numbers or easy-to-read graphs

Calibrated & Precise

Delivered pretested and calibrated with thermocouple sensor under actual vacuum against a NIST standard (NIST certification and documentation is available for an additional fee)

Extended Battery Lifespan

Solid state electronics are built into the Bullseye Precision Gauge. The portable vacuum gauge operates using AA batteries and lasts 70 hours. Do you need to power your Bullseye without batteries? Choose this.


Vacuum pump monitoring, vacuum pump testing, baseline vacuum pump performance, & transformer dry-out, distillation monitoring

Bullseye Precision Gauge Accuracy

Remember to choose your vacuum gauge that gives you the accuracy you need for your application. This Bullseye comes with a thermocouple sensor, which has better accuracy in the millitorr up to 6 Torr. If you need better accuracy between 1 Torr up to atmosphere, then choose the Bullseye Piezo

If you need your Bullseye Gauge to have CE rating then choose either the Bullseye with 531 or Bullseye with 536 KF25

1 to 99 millitorr +/- 2 millitorr or 20%
100 to 2000 millitorr +/- 10%
2  to 6 Torr +/- 25%
Above 6 Torr Continuous and monotonic (increasing reading indicates increasing pressure)

Watch this video of Tim Collins (DigiVac’s CEO) using the Bullseye Precision Gauge to instrument our vacuum pump down solution to verify function and safety. And this video overviews Bullseye’s use in understanding vacuum system function and performance.


User Manual Data Sheet Quick Start Guide Is Your Pump Working?

For more documentation, please visit DigiVac’s folder.

Technical Specifications

Units Torr, mbar, bar, kPa, inHg, mm Hg, millitorr, microns, inches of water, PSI, Pa
Control Range 1E-4 – 1000 Torr
Range with Accuracy .001 – 5 Torr
Sensor Type SEN-VGT500, Thermocouple Plus
Dimensions 6.2”H x 3.7”W x 1.3”D
Certifications ROHS and CE

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Bullseye Precision Gauge
Bullseye Precision Gauge | Portable Vacuum Gauge | .001 to 6 Torr Accuracy