How to extend the speed sensor (SS102K) life of 1: design life: SS102K design life is 5 years of continuous use, mostly exceeded five years in the field, and some exceeded 8 years. 2: The cause of the damage: statistics from the damaged sensor, Mishap 99.7% are mechanical abrasion of the end surface of the sensor caused by damage to the work. This damage can not be repaired. Happen; not only caused economic losses and increased imports of the device, or worse, is a waste of valuable time and resources. 3: The solution to the problem: Now, the formal installation process and describe the process in detail, in strict accordance with this process as long as you do it, you can no longer be guaranteed for a long time the speed sensor is damaged.