Review on 🔌 Gardner Bender GMT-312 Analog Multimeter, 5 Function / 12 Range, 300V AC/DC, Voltage & Current, Resistance, Continuity & Batteries , Black by Tony Flugence

For example, my application requires a physical needle, not digital numbers. A counter placed between the contacts of an antique semi-automatic morse key that produces continuous "dots" when the lever is held down (the metronome-like vibration actually closes the contacts once with each stroke of the lever). The meter serves as a "delay meter" similar to those used in mechanical "points" in car engines of its day, allowing you to determine exactly what percentage of each oscillation the contacts are open or closed. Best around 50%. Funny analog counter app. Of course it also works in normal multimeter functions.