Dwyer AFG-2 is an Averaging Flow Grid designed to monitor air or compatible gas flow. With an accuracy of ±5%, it has a temperature range of 176°F (80°C) and a velocity range of 295.2 ft/min to 5904 ft/min (1.5 to 30 m/sec). The wetted materials include 304 SS, PVC, polyurethane, acetyl plastics, and neoprene rubber. With a process connection of 5/16" barbed, it accommodates tubes with diameters of 5/16" (8 mm) or 5/8" (16 mm). The maximum duct diameter is 59.4" (150.9 cm), and the maximum duct diagonal is 60.4" (153.4 cm).