1.one transmitter,four functions
With a 4 channel transmitter you have 4 assignable radio channels which can be programmed individually. Each of the four buttons has its assigned function(As shown in the above picture).
【button 1 open the garden gate】
【button 2 open the garage door】
【button 3 turn on the light 】
【button 4 deactivate the alarm】
2.one gate,many collective users
The assignment of the transmitter buttons can be chosen by each user individually. Also the configuration of several transmitters can be different(As shown in the above picture). One transmitter can actuate indefinite receivers at the same time.
【button 1 opens the common entrance gate for all house residents】
【button 2 opens the garage door of corresponding house owner】