Ah ok.

Wondered as it appeared that when he hit the thing it beeped. Also
wondered if it didn't work via induction. (which would make the most
sense)

Neil.

On Mon, Dec 19, 2011 at 7:15 PM, Hector Zapata <hlzapata@gmail.com> wrote:

> I believe it works by induction, the current that pulses the injector
> pulses the light. That thing is about a hundred bucks, amd yes, a
> sthetoscope should work to listen to the solenoid.
>
> Hector
>
>
> On Mon, Dec 19, 2011 at 10:54 PM, neil n <musomuso@gmail.com> wrote:

>>
>> .... I wonder if one can feel if
>> a FI is firing or use a mechanics stethoscope to hear it? Seems that
>> device he shows works off of vibrations.

-- 
Neil n

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