LiftMaster LM21XP Extended Performance Release Device SEA solar kit Compatible with all USAutomatic receivers

Compatible with all USAutomatic receivers

Memory Type: EEPROM

Normally open contact activates for 0

It is a slave unit without a control box and is meant to hook up to the PRO4000XLS control box for use with a double gate

Battery Backup for THALIA Control Boards P125020

LiftMaster LM21XP Extended Performance Release Device SEA solar kit Compatible with all USAutomatic receiversLiftMaster 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