On pressing Wretro's SOS button Twice, it will send alarm signals to Smart gateway and notificatrions of an emergency will be sent on the mobile phone. It is simple to use and cost-effective security solution to protect you and your family.
1. Fully digital, highly reliable, large coverage and low power consumption
2. Light weight - weighs 32g only
3. RF coverage of 30m indoor and 100m barrier free