Wireless guest paging & queuing system includes one transmitter and 20 pagers(red circles). When customers arrive, they are given a pager with identifier which will enter into pager queuing automatically. 
After getting the pager, customers are free to take a seat or roam nearby. Staff inputs the pager number and reference in transmitter, the pager alerts in sound ,light and vibration to call the customers back to their meal or queue when it is ready. 

Transmitter parameter 
Category Parameter 
Product model SC-T180 
Dimensions 16.5cm*13.5cm*5cm-*3cm 
Sheathing material PC 
Display resolution 128*64 
Power supply 12V/2A 
Frequency 315MHZ 
Call number cache 0-9999 
Queue number Four 

Pager parameter 
Category Parameter 
Product model SC-R18 
Dimensions Diameter 9.5cm 
Sheathing material PC 
Size for nixie-tube 0.25 inch 
Frequency (313MHZ-317MHZ) default setting315MHZ 
Identifier digits 4 
Alert mode Sound(beep), LED( light) and Vibration 
Low battery indicator LO 
Color Claret 

Charger parameter 
Category Parameter 
Dimensions Diameter 9.5cm 
Output Voltage 12V/4A 
Charged pager capacity 10 

package include 
transmitter x 1 
pager x 20