Wholesale Security Sensor & Detector & Alarm Systems
Are you offen worried about security for the families these days? If so, TradingMic's experts suggest you to choose the professional security systems, such as baby monitor for kid, anti-lost alarm for the old, household gas detector & smoke detector and more other wireless alarms for home, all are available here at a reasonable price. Happy shopping!
China Wholesale Security Sensor & Alarms - Motion sensor / motion detection systems detect movement in areas covered by the security sensors. Some motion detection systems transmit high frequency radio wave signals into the secure area of a room or hallway. Other systems may use infrared light to detect heat changes, such as when a person (body heat) walks by the infrared sensors. If a person moves in the range of the motion sensors, the alarm (audible, visual, or silent) is activated. Back To Top