Battery back-up for Scentry III-GFRAB gasalarm(sold separately) with gas valve controller capability (unit sold separately.) Rechargeable battery keeps pilot lights lit during intermittent power failures if no alarm sounds to indicate a gas leak. N ote: this is the Battery Back Up Only.
Scentry III-BB Safety First Battery Back-Up Specifications:
Case: Gray ABS Plastic with physical size: 4.625 inches by 4.625 inches x 3.625 Inches