suitable compatible withMagnetic induction sensor compatible with treadmill speed measurement-CDB

suitable forMagnetic induction sensor for treadmill speed measurement-CDB Treadmill Speed Sensor Cable 3 Pin Light Sensor Tachometer Magnetic Induction Speed Sensor for Treadmill Spare Parts The universal speed sensors fit in most treadmills and are durable in use Types: 3Pin port Compatible with: Most treadmills Material:plastic colour:black Package Contents: 1 x Treadmill Speed Sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.