1. Can supply the Y-20; because on panel of Y-20 has only 20buttons and correspond lamp, can support 20 transmitters.
2. Thus, if you want support more transmitter can connect the Y-20G,only line one wired, easy installation;
3. Which has the same function as the Y- 20
Wireless calling systerm - Receiver host Y-99 (LED display)
Features:
1) Press the calling button, then receiver upon receipt of a signal will operate an audible alarm (Dingdong), while the display screen will show the corresponding buttons' no.
2) 99...
Signal Enhancer Y-Q
Used in model receiver and transmitter, when need long distance. There is wall or others obstacles. Can set anywhere is ok
Wireless Calling Systerm - Receiver host Y-128 (LED display)
1) Press the calling button, then receiver upon receipt of a signal will operate
can audible alarm (dingdong), while the number will show on display screen .
2) 128 channels receiver host can be...
Wireless Calling Systerm-Receiver host Y-20
1) Press the calling button, then receiver upon receipt of a signal will operate an audible alarm (music), while the LED turns red corresponding
2) 20 channels receiver host can connect more...