Fieldpiece Wireless Probe Vacuum Gauge with LCD Display - MG44



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MG44 Digital Wireless Probe Vacuum Gauge

This tough, new wireless vacuum gauge, MG44 is engineered to give you the reliable readings you need - and the ease of use you want. Like every piece of Fieldpiece hardware, the Wireless Vacuum Gauge (MG44) is built to make your work easier. It helps eliminate misleading measurements by allowing you to connect it at the system port  – even those awkward, hard-to-reach spots. It’s also housed in a rugged impact- and weather-resistant case.


The NEW MG44 Micron Gauge Impact and Weather Resistant designed for the field

  • Confidently perform evacuations with a reliable, leak-proof seal.
  • Reversible angled coupler and new cylindrical design are easier to fit into tight spaces.
  • There are three ways to use:
      • View from up to 300 metres away (line of sight) via the Job Link® mobile app
      • View on the Fieldpiece SMAN™ Refrigerant Manifold SM380INT or SM480INT
      • View direct from the MG44’s display.
  • Three ways to view the new larger backlit LCD screen is easier to read and its dot-matrix display shows more info including:
      • bar graph
      • rate
      • rate meter
  • IP54-rated weather-resistant.
  • Rugged over-molded construction for extreme impact resistance.
  • Range 50 to 25,000 microns
  • Units of measure: microns (µm) of mercury, mmHg, mbar, mTorr, Torr, and Pascals


  • Micron Vacuum Gauge - MG44
  • Reversible Coupler Fitting
  • Operator's Manual
  • 2 x AA Alkaline Batteries


Minimum Device Requirement BLE 4.0 devices running: iOS® 7.0 or Android™ 5.0
(Latest compatibility at
Connector type 1/4” SAE male fitting
Accuracy ±(5% of reading + 5 microns) at 77°F (25°C), 50 to 1000 microns
Range and Units 50 to 25000 microns of mercury (English),
6 to 3333 Pascals (Metric),
0.06 to 33.33 mBar (Metric),
50 to 25000 mTorr (Metric),
0.05 to 25 Torr (Metric, equivalent to mmHg)
Best Resolution 1 micron of mercury (below 2000 microns),
1 Pascal (below 250 Pascals),
0.001 mBar (below 2.5 mBar),
1 mTorr (below 2000 mTorr),
0.001 Torr (below 2.5 Torr, equivalent to mmHg)
Battery Type 2 x AA Alkaline, NEDA 15A, JIS UM3, IEC LR6
Battery Life 40 hours typical alkaline
Auto Power Off 15 minutes default (APO adjustable)
Wireless Range 1000 feet (305 meters) line of sight.
Obstructions affect distance.
Radio Frequency 2.4 GHz
Water Resistence IP55
Operating Environment 14°F to 122°F (-10°C to 50°C) at <75% RH
Storage Temperature -4°F to 140°F (-20°C to 60°C) at <80% RH (with batteries removed)
Weight 0.66 lbs (300 g)
US Patent


1 Year from Date of Purchase (​excludes Consumables such as Filters, Gaskets, Leads, Batteries, Fuses, Sensors, Case etc)


Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's Warranty. Please register your product with provided warranty card.


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