Specification:
Universal compatible with 12V Motorbike Car / Boat / ATV / UTV / Camper / Caravans / Travel Trailer etc.
Help to monitor the storage-battery voltage, LED will alarm flash if the voltage is higher than 15V.
15V Voltage Range, 11.3V-11.9V RED Led indicate the battery should be changed, 12.0V-12.5V YELLOW Led indicate normal when the car engine is OFF, 12.6V-15V GREEN Led indicate normal when the engine is ON.
High Grade Flame Retardant Materials, IP65 Waterproof, CE and RoHs Certify, Totally Environment Friendly
Portiforium Dimension: 3cm (1.18in)
Outer diameter: 37mm / 1.4″
Thread diameter: 26mm / 1.1″
Length: 41 mm / 1.61″
Interface Type: Anode and cathode
Application: Universal for all Cars, motorcycles-Boat and other universal models.

Ref: BSF50798-1-12VC