RPM input into SDL

[Martin]

Hi,


What would be the best way to get RPM into an SDL without splicing into wiring of a car?

This is for testing aplications so splicing into wiring is not a good option since it has to be done to many cars.
Could one coil some wire around the trigger wire? Would a coil areound the HT lead be dangerous?
And which would be the best output to wire it to?


THanks
M

[SprinterTRD]

You can get test probes for multimeters that clamp on to a wire and have a sharp needle which goes through the insulation.

[Martin]

Thanks for the tip. Has nayone tried coiling wire around the trigger side?