Replacement for Fieldpiece MG44. 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 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. Made in USA. What's in the box (1) MG44 Wireless Vacuum Gauge (1) Reversible 1/4" angled (45°) coupler (1) Operator's manual Specifications- Connector type: 1/4” SAE male fitting A2L compatible. 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