Bennett SB-100 Meter Electronic Calibration, outlet over cylinder #3 (cylinders are labeled on the meter)
Has no calibration dial
Bennett switched from a flat inlet with gasket to a grooved inlet with O-Ring between 2012 and 2014. All PMP meters are grooved inlet with O-Ring which work in all applications.
Note: This meter is not for use with Aviation Fuel (AVGAS)