The LCD displays the mode you are in. This injector tester pulse tool can be modified for relay testing or solenoid valve testing, other modifications should be made under the guidance of professionals.
Fuel Injector Tester 8 Pluse Modes Cleaner Adapter Cleaning Tool Kit Universal
Fuel Injector Tester Cleaner Tool Kit 8 Pulse Modes Injector Tester 2 Fuel In
