wireless siren and alarm system

Wireless installing, high decibel horn, It can be hid somewhere in the valid wireless receiving distance, insert the power adaptor, one the sensor is triggered, it immediately gives off high decibel siren to scare away the intruder. Index data: 1.Working voltage: input: 110 VAC or 240VAC , Output :9~12VDC 2.Siren index: 110~120 dB (Test distance: 300mm, Surrounding noise: ≤65db, standard voltage) 4, Sound frequency: 3.8KH2+10％ 5, Transmit speed: 3H2±10％ How does it works? It needs to connect the electricity .please connect the power adaptor (transformer) with the electricity. Once the sensor is triggered and send wireless signal to wireless horn, it will immediately gives off siren with high decibel. So users and neighbors can check any intruders. When you want to add extra sensors, please play the eight codes to match the wireless horn siren (you can read the eight codes from the wireless horn or remote controller). When you set the protection zone, please follow the fixed codes as the manufacturer provided. The maximum protection zones are up to 32 zones. (Like our Model NO. ATS-401) Currency: Unit Price: Quantity: Delivery: