Potmeter with Electronic Flow Meter is used on a variety of engines by removing the injector and replacing with a dummy injector. HKS Enterprises is the manufacturer of Potmeter with Electronic Flow Meter. HKS Enterprises also manufactures diverse types of wire wound resistors, metal oxide thick film resistors, rheostats, potentiometers, auto transformers, load bank, electrical & scientific goods. Potmeter with Electronic Flow Meter is available under the code number- H-03. The Potmeter consists of a specially shaped dummy injector, which is fitted into the engine cylinder, and an electronic flow meter, which applies a constant air pressure and monitors the airflow due to cylinder leakage. This allows the state of the piston rings/cylinder bores and the valves/valve seats to be assessed.