Description
Chamberlain B4613T Chamberlain B4613T Wifi Battery Backup Garage Door Opener First Alert 4 – 4 1 2 408 Presto Size:100' 14 3 101142 more recharges 4 – 4 1 2 408 – 459 3 1 2 – 4 357 – 408 3 – 3 1 3 306 – 340 70 – 80 32 – 36 Plastic Jacketed