LiftMaster LM21XPBB Extended Performance Release Device, Internal Battery Backup System, UL 864 Revision Compliant

LiftMaster LM21XPBB Extended Performance Release Device, Internal Battery Backup System, UL 864 Revision Compliant

Features | Commercial Fire Door Release Devices | Extended Performance Release

Provides the functionality of a standalone fire alarm system.

Includes battery backup for installations prone to power outages.

Allows you to connect a manually operated Fire Door to a buildng alarm system.

UL864 Revision 9 compliant.

Main Features

• Internal Battery Backup system.
• Trouble and alarm relays for communication with the fire alarm control panel.
• UL 864 Revision 9 compliant.