Trigger failure: loose circuit connection/error, internal conductive component damage, component fatigue caused by overtight installation.
False trigger: rubber jacket damage and moisture, improper installation position and friction and collision, rubber aging and deformation.
Local failure: local conductive layer breakage, local uneven force during installation.
Appearance damage: rubber aging and cracking, external force scratches/crushing, chemical corrosion.
Unstable signal: poor wire contact, electromagnetic interference, local component fatigue.
