Motogadget Ignition Signal Sensor

3 reviews Regular price $74.00 Sale price $68.00 Save 8%
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Not suitable for stick spark plug connectors with integrated ignition coils.

This is a specialized sensor to use in tandem with electronic rev counters and Motogadget gauges. This sensor is attached to the spark plug wire (high tension cable) and provides the appropriate reference signal for the gauge every time the spark plug fires. Although this sensor will work with absolutely any ignition system, it is not necessary in most applications. The only ignition systems that require this type of sensor are CDI ignitions (capacitor discharge ignitions), magneto ignitions, or ignitions that don't have a way to get the signal from the coil. It features a direct and contact-less signal collection from the (high tension) ignition cable.

On bikes with CDI (capacitor discharge ignition) and other older ignitions (magneto), the spark signal is difficult to sense because they can be noisy but this little sensor solves that problem. However, in the case of regular transistorized or points ignition with negative signal (98% of regular street bikes have transistorized ignitions) this sensor is not necessary. The sensor is very easy to install and is attached to the spark plug wire with cable ties.

This device provides pulse reference to ground (-) when the spark plug fires, basically mimicking what happens in a transistor ignition or points ignition.

Size of the signal collector is approx. 1" x 1" or 25 mm x 25 mm, cable length is approx. 38" or 100 cm.

What is in the box: Ignition signal transmitter, 2 cable ties, installation manual


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Roger S.
United States

Motogadget Ignition Signal Sensor

Easily installed. Instructions very clear. Worked exactly as claimed, first try. No problems. What else is there to say?

Brad S.

Motogadget Ignition signal sensor

Worked like a charm. I installed an electronic ignition on a 72 Moto Guzzi El Dorado. Had to get a new tach in hopes of picking up the ignition signal. Bought a motogadget tach - no luck. Turns out you also need the ignition sensor. Why Motogadget doesn’t sell these with the tach is beyond me, but it was just what I needed. Tach works fine now.


Worked like a champ

I used this on my 1979 CX 500 so I could add an electric tach. Easy installation and worked great. Looks clean and works!!

Touring the Ultimate Porsche Destination with Magnus Walker


From our customers


100% impressed over and over again by Jeff & Co at Revival. They’re patient and kind no matter the enquiry (currently resto-modding an R100/7 and have LOTS of questions about the Motogadget rewire) and go out of their way to offer creative solutions and out of the box thinking. I will forever return and recommend Revival.

Theo B.
North Vancouver, BC

I cannot recommend Revival Cycles enough. Not only do they have a great assortment of gear and accessories but they provide superb customer service. I was having some difficulty making it work... Jeff pointed out what I was missing and also provided schematics to make it work. Thank you guys very kindly, your crew rocks.

Svend P.
Santa Fe, NM

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