Description
- Works with LiftMaster® models 2500, 3500, 3800 and 8500 garage door openers
- Operates the garage door opener as if the power was still on (all safety and security features still operate)
- Audible signal sounds when door is moving under battery power
- Bright LED lights let you know when the Battery Backup is charging, in use, or when the batteries need to be replaced
Additional information
| Weight | 144 oz |
|---|---|
| Manufacturer |