The Fieldpiece MG44 Wireless Vacuum Gauge is a rugged micron gauge designed for accurate HVAC-R evacuation monitoring. Built for air conditioning, refrigeration and heat pump service work, the MG44 allows technicians to measure deep vacuum directly at the system port for a more reliable indication of evacuation progress.
With wireless Job Link® connectivity, the MG44 can be viewed three ways: directly on the gauge, through the Fieldpiece Job Link® App, or on compatible Fieldpiece SMAN® digital manifolds. Its compact cylindrical body, reversible angled coupler and rugged IP54-rated housing make it easy to install in tight service areas while standing up to field conditions.
Key Features
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Wireless vacuum / micron gauge for HVAC-R evacuation
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Measures vacuum from 50 to 25,000 microns
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1 micron resolution below 2,000 microns
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View readings on the gauge, Job Link® App or compatible SMAN® manifold
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Wireless range up to 305 m / 1000 ft line of sight
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Three display views: Rate, Bar Graph and Rate Meter
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Reversible 1/4" angled coupler for easier connection in tight spaces
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Rugged over-moulded body for impact resistance
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IP54 weather-resistant construction
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A2L compatible
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Auto power-off with adjustable timer
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Powered by 2 × AA batteries
Specifications
| Item | Specification |
|---|
| Brand | Fieldpiece |
| Model / Part Number | MG44 |
| Product Type | Wireless Vacuum Gauge / Micron Gauge |
| Measurement Range | 50 to 25,000 microns |
| Accuracy | ±5% of reading + 5 microns from 50 to 2,000 microns at 25°C |
| Best Resolution | 1 micron below 2,000 microns |
| Display Units | microns, Pascals, mBar, mTorr, Torr / mmHg |
| Connection | 1/4" SAE male fitting with reversible angled coupler |
| Wireless Range | Up to 305 m / 1000 ft line of sight |
| Connectivity | Job Link® App / compatible SMAN® manifolds |
| Display Views | Rate / Bar Graph / Rate Meter |
| Protection Rating | IP54 |
| Overpressure Protection | Up to 60 bar / 870 psig |
| Operating Temperature | -10°C to +50°C |
| Power Supply | 2 × AA alkaline batteries |
| Battery Life | Approx. 40 hours typical use |
| Auto Power Off | 15 minutes default, adjustable |
Kit Includes
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1 × Fieldpiece MG44 wireless vacuum gauge
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1 × Reversible 1/4" 45° angled coupler
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2 × AA batteries
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Operator’s manual
Applications
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Air conditioning evacuation monitoring
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Refrigeration system evacuation
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Heat pump commissioning
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Deep vacuum measurement
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Vacuum decay / hold testing
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A2L refrigerant system service work
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Use with Fieldpiece SMAN® digital manifolds
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Job Link® service reporting and documentation
The Fieldpiece MG44 gives HVAC-R technicians a durable, accurate and connected vacuum gauge for professional evacuation work. With wireless viewing, a compact angled design and rugged IP54 construction, it is a strong choice for technicians who need reliable micron readings directly from the system.
