Product parameters:
Size: 86 * 86 * 18mm
Panel material: ABS+PC
Quiescent current: 2uA
Wireless frequency: 433MHZ 1527 330K.
Wireless distance: about 100 meters in open area (no obstacles)
Note: The SOS button can't work standalone. It need to link with an alarm control panel. Please make sure your alarm control panel can be compatible with the specification of SOS button 433mhz, 1527 330K before buy.
Working voltage: powered by 12V 23A battery.
Application: a nursing home, school, home, hospital, factory, etc
Usage: Outdoor waterproof.