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Model 22W LCD
Model 22W Replaceable Sensor

Model 22W LCD | Active Vacuum Gauge and Vacuum Transmitter with Display



Ultra Compact thermocouple vacuum transmitter that delivers big results.


  • Active gauge can easily be popped off included 531 sensor and switched out/no tools required
  • Includes RS232 and 5 Volt Analog output
  • Bright LCD display for local reading of vacuum pressure
  • Applications: freeze dryers, refrigeration systems, assembly lines, vacuum ovens, laboratory
5 out of 5 based on 1 customer rating
(1 customer review)

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Product Description


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


  • Active Vacuum Gauge with display—vacuum transmitter 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, assembly lines, and vacuum packaging 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:  531 Thermocouple Plus SensorAgilent 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
  • Accuracy: 15%
  •  Calibrated—Every Model 22W is calibrated and pretested under actual vacuum against a NIST standard, if you need before and after data included with the vacuum gauge then add a NIST Calibration to your order
  •  Applications—freeze dryers, refrigeration systems assembly lines, vacuum ovens, laboratory, and foreline gauge solution, food processing, industrial manufacturing


Model 22W LCD has a compact electronic package that fits right on top of the vacuum tube for accurate vacuum measurement. This vacuum gauge has an integrated display.


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 active gauge on top of the gauge tube
  • Run the low voltage power wire (provided) to the gauge
  • Connect the digital signals


Options:     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 CE


Additional Information

Weight 2 lbs
Shipping Dimensions 11 x 10 x 4 in


Vacuum Reference






Total Range

.001-760 Torr

Range with Accuracy

.001 – 2.0 Torr

Sensor Type

531 Thermocouple Plus, Agilent 531 NPT, Agilent 536 NPT





Panel Mount




1 review for Model 22W LCD | Active Vacuum Gauge and Vacuum Transmitter with Display

  1. 5 out of 5


    22W is a good product. Provides stand alone pressure measurements and works well.

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Product Manuals

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