How it work of wireless calling system

Hospital nurse call system is widely used in hospital;clinic;elder home and so on. It consist of button for patient use and signal receiver for nurse or doctor use. When the patient need any help, they just press the button, the bed number will be showed on the RECEIVER of display screen with “dingdong” sound. So the Nurse and doctor could offer help very timely.

Specification of number display screen

Software Device 
1.With high strength ABS material cover
2.Insert to USB port of the PC to work via management software (Free)
3.Manage all calling info by PC, it also can show the calling number by itself
4.Easy to read service type from PC                                                                        

5.Read service type from screen directly by red dot                                        
6 Show 3-digit number 001-999, First digit can be alphabet ABCDEFHLUPO, work with 999pcs call buttons in max
7 It can show different service type by dot or last alphabet 
8.Touch screen    
9.Dimension: 282*150*34mm
10 Output: DC12V

Specification of nurse watch receiver

1. Can work with 500pcs multi-key transmitter in max
2. Can show 3 group call number in one time 
3. Show 4-digit number from 0001-9999 and first alphabet can be A-Z
4. Can indicate different service type via words or alphabet. 
    ( call; bill; drink; dessert; help etc and A-Z)
5. Can record when the calling come in and count the call times of each number 
6. Can track the history of calling info by up and down
7. Show current time when stand-by
8. 3 reminder ways: sound prompt and vibration or both 
9. Battery is rechargeable: 3.7V Lithuim battery
10. Dimension: 70*42*16mm
11. Color: Red and Black
12. Output: DC5V--1A

Specification of patient pull button

Waterproof
3-key: Nurse icon, SOS, Tick 
Nurse Icon means call the nurse, SOS means emergency, Tick means cancel the calling
(Have a additional key on pull cord to call)                                         
Cord length: 30cm (default)、50cm、120cm                                  
Signal Distance: 200M  in open area   
Material: PC for plastic shell, waterproof siliga gel
Dimension: 8.6*8.6*2cm
Color: white-blue, white-red, white-grey
wall-mounted installation  
With a antenna to enhance the signal
With a 12V 23A battery