Advantages:
Easy carry watch, super light and comfortable material
315mhz protocol, work with almost all 315mhz alarm system
Long work distance (15 to 30m indoor, 100m outdoor)
Super power save, long work time (normally more than 12 months)

Application:
Home, hospital, old people, kids...
:
Technical Parameters: 315Mhz, EV1527, 430K
Working Voltage/Current: DC 3V/13mA
Transmitted Power: 10mW
Modulation Mode: ASK
Woke Mode: Send out alarm signal in 0.8s after triggered (avoid false alarm)
Work distance: 15 to 30m indoor, 100m outdoor
Power supply: 1 x C2032 battery (include), work time more than 12 months for normally use
Work Temperature: -25℃~+75℃
Size: 46.5x42x15.5(mm)
Weight: about 50g
Color: red+white
material: plastic

Package Contents:
1 x Elderly Pager

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.