The following flow and installation parameters will help you decide whether the Marsh Multi-Mag L Series is suited to your specific flow measurement application. Alternatively, download and send our Free Flow Evaluation Form and a McCrometer sales representative will assist you in choosing the best flow meter for your needs. Sensor Size-Velocity Range for Pipe Sizes 1" Sensor Velocity Range Pipe Sizes (6" to 12") 0.3 to 40 ft/s 12" to 6" 2" Sensor Velocity Range Pipe Sizes (4" to 60") 0.3 to 40 ft/s 10" & under 0.3 to 35 ft/s 12" & under 0.3 to 30 ft/s 16" & under 0.3 to 25 ft/s 20" & under 0.3 to 20 ft/s 24" & under 0.3 to 15 ft/s 36" & under 0.3 to 10 ft/s 42" & under 0.3 to 7.5 ft/s 60" & under 3" Sensor Velocity Range Pipe Sizes (42" to 120") 0.3 to 15 ft/s 60" & under 0.3 to 10 ft/s 100" & under 0.3 to 7.5 ft/s 120" & under Flow Parameters Flow Range 0.3 to 20 ft/s Sensor Operating Temperature 32° to 110°F (0° to 44°C) @ 250 psi - Standard Operating Pressure 32° to 110°F (0° to 44°C) @ 250 psi - Standard Installation Parameters Pipeline Sizes 4 to 120 inches ( 101.6 mm to 3 m) Mounting 2-inch Corporation Stop or Valve Environmental protection rating NEMA 6 / IP67 Class I Division II