Fieldpiece MG44 Wireless Vacuum Gauge – Digital Micron Meter for HVAC (R410A, R134a) | AlperRefrigas

The Fieldpiece MG44 Wireless Vacuum Gauge is a rugged, high-precision micron gauge designed for HVAC professionals performing vacuum evacuation and leak detection on refrigerant systems including R410A, R134a, R22, R32, and blends. Featuring a reversible angled coupler and compact cylindrical design, it’s easy to connect even in tight or awkward spots. The IP54-rated housing ensures durability in the field. The MG44 offers three viewing modes—Rate, Bar Graph, and Rate Meter—and supports standalone operation, wireless display via the Job Link® mobile app (up to 1,000 ft), or integration with the SMAN® manifold screen. With 40–50 hours of battery life and high safety standards, this tool delivers efficient, accurate, and professional system evacuation.

Key Features

Secure evacuation with leak-proof reversible angled coupler

Three viewing modes: Rate, Bar Graph, Rate Meter for real-time monitoring

Upto 1,000 ft wireless viewing via Job Link® App or SMAN® manifold

IP54-rated, impact-resistant housing for extreme field conditions

Broad refrigerant compatibility, including R410A, R134a, R22, R32

Compact, non-slip cylindrical design for easy one-handed operation

Applications

Deep vacuum evacuation for residential, commercial, and automotive HVAC systems

Leak detection and validation during system evacuation

System commissioning and maintenance on R410A and other refrigerants

Remote vacuum monitoring during service via mobile or manifold

Ensures safe and efficient evacuation per EPA and industry standards

Manufacturer Specs

UPC / Part Number: 872641004934

Model / Part Number: MG44

Certifications: A2L Compatible, IP54 weather resistant, rugged over-molded housing

Operation Modes: Stand Alone, Job Link® System App, SMAN® manifold display

Technical Specs

Specification Value

Measurement Range 50 to 25,000 microns (mTorr)

Accuracy ±(5% of reading + 5 microns) at 77 °F (25 °C)

Resolution 1 micron below 2000 microns

Display Modes Rate, Bar Graph, Rate Meter (dot matrix LCD, backlit)

Connector Type 1/4″ SAE male fitting (reversible 45° angled coupler included)

Wireless Range Up to 1000 ft (305 m) line of sight

Battery Type / Life 2 × AA alkaline, ~40–50 hours typical

Power Off 15 min auto power-off (adjustable)

Operating Environment 14 °F – 122 °F (–10 °C to 50 °C), <75% RH

Storage Environment –4 °F – 140 °F (–20 °C to 60 °C), with batteries removed, <80% RH

Water Resistance IP54 (dust and water-resistant)

Weight ~0.66 lb / 300 g

Benefits

Accurate vacuum measurement reduces service errors and increases efficiency

Remote monitoring allows multitasking and safer field operation

Durable design stands up to drops, debris, and harsh conditions

Compact and ergonomic for fast, one-handed use even in tight spaces

Long battery life ensures uninterrupted job site performance

Reliable compatibility with standard HVAC refrigerants and modern control systems