LiftMaster Extended Performance Fire Door Release Device with Battery Backup

Item #: LM21XPBB
Manufacturer: Chamberlain, LiftMaster
Pricing & Availability
Product Specifications
8 Features
1
UL864 Revision 9 compliant
2
Programmable DIP switch delay setting - either 10 20 30 or 60 seconds delay of door release to permit passage clearance
3
Inputs for normally open 2- or 4-wire detectors and 4-wire normally closed detectors
4
Trouble and alarm relays for communication with the fire alarm control panel if required
5
Audible trouble sounder to indicate when the release device is not operational
6
On board diagnostic LEDs for easy troubleshooting
7
Testing function allows routine fire door testing without requiring activation of the smoke detector
8
Includes an integrated Battery Backup Module that allows this fire door release device to stand alone from the fire alarm system and act independently in the event of a power outage
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Product: LiftMaster Extended Performance Fire Door Release Device with Battery Backup

Item #: LM21XPBB