This sender is designed such that each time a ferrous material (eg a propshaft bolt head) passes the sender tip, an electronic pulse is generated.

Fabricate a bracket to mount the sender in close proximity to your propshaft or driveshaft bolts.

A small LED in the cable end of the sender will glow with each pulse when the correct proximity to the bolt head is reached.

Sender head is 8mm diameter  x 50mm long with two locknuts.

Cable length 2m

SEE INSTRUCTION SHEET IN THE PICTURES

SMITHS INDUCTIVE SPEED SENSOR #SSPEDIND