Wireless 433MHz SOS Button Emergency Button for Help Gsm Alarm System

Descriptions: 
Wireless 433MHz Button Emergency Button for Help Gsm Alarm System. 
 
Specification: 
Operating Power: DC3.V (cell coin battery); 
Operating current: Less than equal 15mA; 
Standby current: Less than equal 5uA; 
Emission current: Greater than equal 10mW; 
SOS button for emergencies; 
Wireless distance:  Greater than equal 80M (open area); 
Frequency without cables:  433 Mhz; 
Operating temperature:  -10 ℃ -55 ℃; 
Size: 50*13MM; 
Material: ABS; 
Colour: White + orange; 
  
Package Contents: 
1 * Emergency button