Bullseye Thermocouple

Bullseye Precision Portable Vacuum Gauges

portable, practical, precise as standalone of with Bluetooth

With Pirani sensor   |   With thermocouple sensor


The Bullseye portable precision vacuum gauge presents a new level in portable vacuum measurement. With the robust gauges and rugged control units it offers unrivaled flexibility and connectivity.  The Bullseye  Bluetooth enabled gauges enable monitoring from mobile devices (Android or Apple), alarm settings and documenting vacuum data. This lightweight unit is easy to use in the field for on-site measuring, but is equally useful as a lab or test vacuum gauge. The Bullseye precision gauge combines portability, versatility, documenting and visual analysis all in a single instrument.  The back-lit LCD display shows the vacuum level either numerical of in a graph. Settings can be easily changed with the front push button control;    Menu settings flowchart for Pirani vacuum gauge.


Features of the unique Bullseye precision vacuum gauge are:

  • Portable compact precise and practical unit
  • Rugged control  unit and robust vacuum sensors
  • Field calibration routines
  • Kickstand and magnetic hook for hands-free operation
  • Vacuum graphing for leaks, pump down, outgassing and stable systems
  • Unique patented vacuum analytics
  • Bluetooth enabled versatile portable digital vacuum gauges optionally available
    • Monitor directly or on your Android or Apple device
    • Remote monitoring from your desk with up to 30 meters range
    • Set high and low alarm from your phone
    • Email vacuum data to document leaks, pump down and performance
  • long battery life of up to 140 / 70hrs (Pirani / Thermocouple) or via micro-USB power connection
  • choice of four different models.
Wireless Vacuum Gauge | The Bullseye Precision Gauge® with Bluetooth
#AÜ-60-002408 Bullseye Bluetooth wireless precision
vacuum gauge with Thermocouple sensor, 1/8"NPT

The Bullseye vacuum gauge is the ideal tool for service engineers and field maintenance engineers. With the small footprint, the long coiled cord and magnetic hook it will easily find a place so you will have your hands free to work while monitoring the vacuum level. If you suspect a leak, want to monitor pump-down, measure vacuum performance or check on out-gassing just connect the sensor and use the Bullseye to measure and document. The Bullseye includes instant conversion between 12 different vacuum units; this ideal if vacuum performance needs to be checked on older or foreign equipment. Units converted are: Torr, mbar, bar, kPa, Pa, PSI, inches of Hg, mm Hg, millitorr, microns, inches of H20, mm of H2O.  Menu settings flowchart for thermocouple gauge.

On stationary vacuum equipment, the Bullseye bluetooth enabled precision gauge would be ideal to replace older equipment and offer instant remote monitoring and data storage on mobile devices.  In manufacturing, technicians can instantly check and document performance of vacuum assemblies and equipment.

The Bullseye precision vacuum gauges are available with a choice of vacuum sensors:

  • Pirani sensor
    • increased accuracy over a smaller range
    • increased impact resistance
    • lower power consumption
  • Thermocouple sensor
    • readily interchangeable
    • covers a wider range of vacuum

Applications examples:

  • performance test of lab equipment such as SEM, MS, coating systems
  • test and check of rotary, scroll and diaphragm pumps
  • field testing of vacuum in transformers and HVAC equipment
  • checking of installed vacuum lines
  • testing and monitoring of vacuum drying equipment
  • testing of vacuum assemblies
  • continuous monitoring of vacuum equipment

Specifications for portable Bulleye portable precision vacuum gauges with optional Bluetooth connectivity


Bullseye Pirani

Bullseye Pirani-BT

Bullseye TC

Bullseye TC-BT

Product #    1/8”NPT





Vacuum sensor



Vacuum range

1.3 x 10E-4 to 100mbar

1.3 x 10E-4 to 1050mbar


Torr, mbar, bar, kPa, Pa, PSI, inches of Hg, mm Hg, millitorr, microns, inches of H20, mm of H2O

Torr, mbar, bar, kPa, Pa, PSI, inches of Hg, mm Hg, millitorr, microns, inches of H20, mm of H2O


0.050-30mbar  ± 10%

< 0.01mbar  ± 0.002 mbar
0.01-5mbar  ± 15%
250-1050mbar  ± 25%

Vacuum connection

1/8” NPT male
KF25 flange

1/8” NPT male
KF25 flange

Vacuum reference




Digital, LDC, back-lit

Digital, LCD, back-lit

Bluetooth enabled






4 x AA Alkaline and micro-USB

4 x AA Alkaline and micro-USB

Battery life

Up to 140 hrs

Up to 70 hrs

Gauge connection cord

3mtr, straight cable

2mtr, coiled cable


160 x 92 x 40mm

160 x 92 x 40mm




CE certified



Rohs compliant



googleplay logo Download the app for Android mobile devices: https://play.google.com/store/apps/details?id=com.digivac.bullseye

8 Item(s)

8 Item(s)