Amazon.com: Slippery Pete Fluid Pump for Gallon Bottles and Wide Mouth Quart Bottles (Not for Standard Quart Bottles) - Transfer Gear Oil, Transmission and Differential Fluid, Antifreeze with This 30cc Hand Pump :
Useful information on reciprocating piston pumps
Useful information on positive displacement pumps
How Does a Pump Stroke Counter Work - YouTube
Pump stroke counter - PSC-3 - RIGCHINA GROUP COMPANY - digital / electronic / stainless steel
Advanced Stroke Controller | Neptune
One pumping cycle (stroke) with Hauksbee's double-barrelled air pump.... | Download Scientific Diagram