Appearance Features: Zinc-plated steel housing with color zinc finish, M14×1.5 external thread, metal probe tip, hexagonal wrench flat, red sealing ring, green spade terminal with braided cable.

Core Functions: Installed on the gearbox to detect reverse gear position, used to trigger the reverse light and buzzer.

Design Advantages: Red sealing ring enhances sealing performance and prevents oil leakage; braided cable provides wear resistance and anti-twisting protection; color zinc plating enhances corrosion resistance; normally open design matches vehicle control logic.