GSM SOS Panic Button Alarm for elder kids patient

  Wireless Panic Button for alarm system freqency 315Mhz/433Mhz  DP-23A       1, alarm panic button
2, compact design; 3, Long transmitting distance
4, Handheld type
5, Easy to use 6, factory direct price           Feature  

Name	Wireless Panic Button
Model	PST-PB101
Power Supply	Battery
Battery Type	23A 12V
Wireless frequency	433MHz
Wireless transmission range	100-200 meters(Open area)
Coding chip and Resistance	2262/1.5-4.7MΩ
Alarm indicator	Red LED
Low battery indicator	Red LED
Antenna type	Internal antenna
Static current	≤10μA
Alarm current	≤30mA
Operation Temp.	–10°C to +50°C
Humidity	5%--95% non-condensing
Dimension	40*70*18mm
Weight	50g

  Package list   1 panic button, 1 battery.       
other type panic button :