LiftMaster LM21XP Extended Performance Release Device SEA solar kit Battery Backup for THALIA Control

Battery Backup for THALIA Control Boards P125020

Compatible with all USAutomatic receivers

card + pin

Usage Classification: Class I

To be 2018 UL325 Compliant it is mandatory for each slide gate system to have at least two functioning SAFETY DEVICES

LiftMaster LM21XP Extended Performance Release Device SEA solar kit Battery Backup for THALIA ControlLiftMaster LM21XP Extended Performance Release Device The LiftMaster LM21XP Release Device is a UL ULC listed normally energized fail safe device designed for use on rolling doors, single slide, center parting level, and inclined track doors. This device is a normally energized fail safe releasing device incorporating state of the art electronic control circuitry. The release device responds to emergency conditions generated from an automatic