LiftMaster 86LM Antenna Extension Kit for Gate Openers first-responder Dimensions: 4-1/8" x 3" x

Dimensions: 4-1/8" x 3" x 15/16" (105 x 76 x 33 mm)

Telephone Intercom Access: Communicates directly through the homeowner’s telephone line without additional monthly fees

simultaneous two-way conversations

Open the transmitter to access the dip switches

Two 12V 7AH batteries are included for backup operation during power outages

LiftMaster 86LM Antenna Extension Kit for Gate Openers first-responder Dimensions: 4-1/8" x 3" xEnhance Signal Strength with the LiftMaster 86LM Antenna Extension Kit The LiftMaster 86LM Antenna Extension Kit is an essential upgrade for enhancing the signal strength and range of your gate or garage door opener. Specifically designed to boost performance and ensure reliable communication between your remote controls and opener unit, this kit is perfect for overcoming signal interference or extending remote control range. Compatible with