MG44 wireless vacuum gauge
MG44 wireless vacuum gauge
MG44 wireless vacuum gauge
MG44 wireless vacuum gauge
MG44 wireless vacuum gauge
MG44 wireless vacuum gauge
MG44 wireless vacuum gauge
MG44 wireless vacuum gauge

MG44INT - Wireless Vacuum Gauge

Rugged, accurate and wireless.


Wireless Vacuum Gauge

Rugged, accurate and wireless.

  • 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 1) up to 300 meters (1000’) away via the Job Link® mobile app, 2) on the Fieldpiece SMAN® Refrigerant Manifold, or 3) direct from the MG44’s display.
  • Three ways to view: New larger backlit LCD screen is easier to read and its dot-matrix display shows more info including 1) bar graph, 2) rate, and 3) rate meter.
  • IP54-rated weather-resistant.
  • Rugged over-molded construction for extreme impact resistance.

Designed for the field.
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.

Install anywhere – even one-handed.
The new, smaller cylindrical shape of the Wireless Vacuum Gauge, its no-slip grip, and the addition of a reversible angled coupler—mean the MG44 is easy to manipulate and install in the toughest spots.

Three ways to use.
While you’re performing an evacuation, this gauge allows you to monitor progress via the Job Link® app from up to 300 meters (1000’) away. The MG44 also works with existing SMAN® Refrigerant Manifolds (SM380V/SM480V) or you can monitor evacuation measurements directly on the MG44 display.

Three ways to view.
A dot-matrix display means you get multiple views – bar graph, rate, and rate meter; and our new larger backlit LCD screen is bright and easy to read, even in low light or at odd angles.

Pick up a wireless vacuum gauge right now.


  • 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 2000 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 (300 meters) line of sight. Obstructions affect distance.
  • Radio Frequency: 2.4 GHz
  • Water Resistance: IP54
  • 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)

Manual MG44

Manual MG44

Can I connect the MG44 to the SMAN digital manifold?

How can I read the measurements on the MG44?

Why is my vacuum pressure inaccurate?

How to clean/maintain my MG44?

Where is the best location to put the MG44 for most accurate vacuum pressure reading?

Why will my MG44 show vacuum pressure when directly hooked up to pump but not when I am pulling on a system?

How do I check if my MG44 is leaking or not?

Why does my vacuum pressure jump up when I turn off my vacuum pump?

Why does my MG44 read – – – – ?

What is the wireless range?

What is the maximum overpressure on the MG44?

Can my tool connect wirelessly to the manifold?

MG44 wireless vacuum gauge

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