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This Lift-Master Model 61LM Single-Button Remote Control - Dip Switch is for use with older model LiftMaster garage door openers.The 61-LM features 9-position trinary DIP switches with 19,683 digital codes per channel for added security.
- 1 button transmitter for Sears/Lift-master and Chamberlain openers
- Works with 8 or 9 three position dip switch systems
- Battery and visor clip included
- Lift-master compatible models:51LM,53LM,54LM
- Chamberlain compatible models:750CB,753CB,756CB
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