United even smart watches SOS emergency alarm linked even smart home security subsystem, through wireless door sensor, infrared sensors, sound and light siren, smoke alarms, gas alarms, SOS distress elderly smart watches and other intelligent security equipment, home security alarm provides a set of comprehensive solutions, door sensor or infrared sensors installed at the door or window, the intruder broke into the case, the sensor will send a signal, high-decibel siren will be sounded immediately, through telephone or e-mail notifications family or community security; intelligent smoke alarm according to indoor smoke concentration to determine whether the fire, in case of a fire alarm will signal communications danger, while the doors automatically open ventilation; also you can always see the home situation through video surveillance, also You can achieve more automation scenarios to ensure all foolproof. Numerous cases to verify its reliable quality, people believe it is a qualified door family "bodyguard." United even smart watches SOS emergency Alarm 1, Technical parameters: 2, Power: 23A special battery-powered 2, distance: 300 m 3, the working environment: Temperature: -10 ~ 50 ℃; 4, the operating frequency: 433.92MHz Features: 1, battery-powered, real free wiring 2, low-power design, in a dormant state when not in use 3, PP raw materials, environmental protection, will not cause harm to humans 4, and alarm host networking can start the first time by telephone or SMS to notify family members 5, wear comfortable, can freely adjust the size 6, anti-false trigger design, to ensure the normal wear does not false start Overview This product is based on human comfortable to wear and easy method of operation point of view, the design of a elderly case or children unattended at home, an accident occurs, they can always turn on the smart watch above the red button, notify the family and view the scene in real time via a remote camera. Contact: Mr. Luo Tel: 18926049293 E-mail: dongzhou_luo@163.com Company Address: Bao'an District of Shenzhen City streets Liyuan Kai Hui Mao Industrial Park Road, Building D, 3rd Floor Company Website: http://www.l-unicom.com