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Product performance description

the 4-Channel RF Wireless Remote Control Duplicator used for Garage Doors , automatic roller shutters,commercial gates,home GSM alarms,car Alarm systems etc. 

Fixed frequency (433.92mhz) for copying 99.99% common fixed and learning code remote controls.

Face to face copy the functions of your original remote by this 4-channel RF remote control duplicator with copy code duplicator functions and you'll always have a back up.

Description of product use effect

the same remote control RF transmitter could control multiple devices in your daily life,for office leave shade,home garage door,bedroom lighting etc. as you requirements. 

how to copy an old remote control?

Step 1: Clear the history code from duplicator
1. Press button A and B at the same time until LED flash.
2. Release button B and keep pressing button A, then press button B 3 times,
LED flash fast indicate succeed to clean code (can release button A now)

Step 2: Copy code from original transmitter
1. Put duplicator aside of original transmitter, as close as possible.
2. Press and hold button A of original transmitter and button A of duplicator at the same time, until duplicator’s LED flash and
keep lighting.
3. Release both buttons, finish code copy, and copy other button in same way.