Kartech Engine TACHOMETER..

KARTECH ENGINE TACHOMETER.. The dimensions of the tacho are 85mm x 55mm x 15mm deep......with 13mm high display numbers. They show you your engine RPM continuously. And not only that but also has a memory to record the HIGHEST Revs each race or practice session. Check your Clutch engaging RPM for easy adjusting.. Tacho comes with Velcro tape. Then the pulse wire and clip attach to the spark plug hi tension lead. This wire is looped through an attaching hole in the dide of the tacho's platic case. The loop is the pickup point to count the RPM. Inside the case is a copper antenna that senses the spartplup spark pultz's.