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Compliant with UL 294
Liftmaster 423LM 3-Channel Coaxial Receiver
Pressing the transmitter’s left or right front button sends channel one or two
Plug-and-play installation requires no trenching or special wiring permits
Diagnostic LED
Linear GRD 1-Channel Gate Receiver Doorking Swing Gate Opener Compliant with UL 294CLICK HERE FOR BROCHURECLICK HERE FOR MANUAL Linear GRD 1 Channel Gate Receiver The Linear GRD is a 1 Channel Gate Receiver designed for use with automatic gate operators or systems where a remote antenna is needed. The receiver uses the Delta 3 radio format, with 256 possible codes, set by dip switch. Features Auto voltage sensing no jumpers to set Single Form A (normally open) relay rated at 30 Volts AC DC up to 5 Amps Supplied with whip antenna,
