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Model 22W Replaceable Sensordigivacblk800

Model 22W | Active Vacuum Transmitter with Sensor



Ultra-compact active gauge vacuum transmitter with no-tools required replaceable sensor


  • Efficient design with no moving parts for durability and reliability
  • Active gauge vacuum transmitter measures full range of rough vacuum pinpointing either gross/ fine errors or leaks
  • Includes RS232 and 5 Volt Analog output and replaceable Agilent sensor
  • Ideal for manufacturing assembly lines and food processing



  • Freeze dryers
  • Refrigeration systems
  • Assembly lines
  • Vacuum ovens
  • Laboratory


Also see the model 22w vacuum gauge and controller with LCD screen

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Product Description


Active Gauge Vacuum Transmitter | No-Tools Required To Replace Sensor

  • Active Vacuum Transmitter—vacuum gauge measures full range of rough vacuum pinpointing either gross or fine process errors or leaks |Measures from 1 micron to 760,000 microns (760 Torr) or atmosphere
  • Includes RS232 and  5 Volt analog output | ideal for industrial manufacturing and food processing applications
  • Efficient—designed with no moving parts for durability and reliability/ No mounting is required
  • Replaceable sensor—field-replaceable allowing for longer transmitter life
  • Choose the Sensor for your application:  Agilent 531 sensor  or the Agilent 536 sensor with an integrated baffle that greatly extends the sensor life when exposed to condensable gases
  • Total Vacuum Range: 1 x 10-3 Torr to 2 Torr (1 x 10-3 mbar to 2.7 mbar)
  • Vacuum Interface: 1/8″ NPT
  • Calibrated—Every Model 22W is calibrated and pretested under actual vacuum against a NIST standard
  • Applications—freeze dryers, refrigeration systems assembly lines, vacuum ovens, laboratory, and fore-line gauge solution, industrial manufacturing assembly lines, and food processing

Model 22W has a compact electronic package that fits right on top of the vacuum tube and performs as an active vacuum transmitter.


There is no need to take up valuable benchtop or panel space!


Simple Set-Up of Vacuum Process Telemetry:

  • Plumb the vacuum gauge tube into your vessel
  • Plug in the Model 22W on top of the gauge tube
  • Run the low voltage power wire (provided) to the gauge
  • Connect the digital signals

Options:    If you need a display on your processing assembly line then choose the Model 22w with  LCD Display     |      536/CE rated tube     |     Measurement Units

RS232 output: can be used to graph and plot historical data with the DigiVac plotting software, and as a vacuum transmitter to a PLC or other device.



Units Torr or Millibar
Total Range .001-760 Torr
Range with Accuracy .001-5 Torr
Sensor Type Agilent 531 NPT, Agilent 536 NPT
Dimensions 1.6″ x 1.8″ x 2.4″
Certifications RoHS


Additional Information

Weight 3 lbs
Shipping Dimensions 11 x 10 x 6 in


Vacuum Reference






Total Range

.001-760 Torr

Range with Accuracy

.001 – 2.0 Torr

Sensor Type

Agilent 531 NPT, Agilent 536 NPT





Panel Mount





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