1. Sound &flash alarm for 100dB 2. Low voltage monitoring and indication function 3. Peridically sends online reports to the gateway 4. Anti-Tamper design 5. Wireless transmission,easy to install. ABS materias housing,radiation-resistant and heat-resistant. Detector is triggered,will immediately emit a sound and light alarm to deter intruder,users can also use the APP to achieve out-of-home alert,hoem alert,cancel alert,emergeny alarm and other operations.In order to achieve the wireless sound and light alarm control.When the alarm is used.it need to be used with the gateway.through the APP parameter setting to achieve the control of the wirless sound and light alarm,the whole system of communication all use wireless transmission.so that the installtion of produdcts convenient and fast. High decible sound and light alarm,greate thatn 85dB,mobile phone APP remote alarm alert,special security fidld of anti-removal design.It has a low voltage monitoring prompt function.No wiring required,easy installtion.Send an online report to the gateway on a regular basis. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC220V Colour:White Material:ABS Package Contents: 1 * Sound and light alarm 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.