American Lube TIM-616 Stationary Mechanical Oil Meter with Odometer Readout, 1/2" NPT (F) Inlet/OutletAmerican Lube TIM 616 In Line Fluid Meters Allow For Easy Monitoring Of Fluid Dispensing. The Following Digital Electronic Meters Include Two (2) 1. 5V "N" Style Batteries (Aaa Batteries). Accuracy Within The Flow Range Is . 5%, And Repeatability Is . 2%. All Meters Except 1 2" Version Include Inlet Filter Screen. Stationary Mechanical Oil Meter With Odometer Readout: Measures Fluid Lubricants In Quarts. 1 2"(F) Inlet Outlet. 1 To 32 Quarts Minute