P4 Lightbox

Motor speed detection

The latest generation of the Lightbox for quick and easy detection of the engine speed via the ignition cable or a signal cable on the CDI.

Recording the correct engine speed is a decisive factor in test bench measurements. With the Lightbox from Amerschläger, this can be done in seconds by simply connecting the supplied clamp to the ignition cable or, if no ignition cable is available, to a signal cable from the CDI. This quick and uncomplicated method enables immediate and reliable measurements. In addition, the Lightbox has recently been extended to allow easy testing of the connection to the Redbox, making it an even more valuable tool for accurate dyno measurements.

P4 Electronics for speed detection
P4 Electronics for speed detection

Scope of delivery

P4 Lightbox, fibre optic cable, cable with clamps for ignition cable or signal cable, cable with earth clamp, power supply unit 12V/2A, instructions.


Holiday from 10 to 17 May 2024

We take the gas out

Dear Amerschläger friends,

It's time for a little rest! Our team is taking a creative break from 10 to 17 May. Our company will be closed during this time. We are using this break to recharge our batteries so that we can support you with new energy and great ideas afterwards. Thank you for your understanding and patience. We look forward to supporting you with our full commitment after our holiday!

Your Amerschläger Team