Brand New 6V 330MAH Ni-MH back-up battery suitable for most Alarm Bellbox External Sounders. 

Product Features:

VOLTAGE:  6 VOLT

CURRENT: 330mAH

TYPE:  Ni-MH  (can replace older type Ni-Cd)

DIMENSIONS: 44M (L) X 25 (D)

LEAD: 5cm  Red (positive) Black ( negative)

P/CODE: 5H 330BC

This replacement battery for external Intruder Alarm Bell boxes / Sounders is suitable for most hard wired Bell Boxes on the market today. They can replace existing  6V or 7.2V batteries both Ni-MH or older type Ni-Cd