Infrared sensor alarm. When people get close to the alarm, it will detect the signal and activate the alarm.
Insert SIM card into the device for controlling. (GSM SIM card is recommended)
Adopts advanced wireless communication technology.
Audio monitoring, clear voice. After binding this device with your phone, it will call you when it alarms.
Positioning. You can send message "DW" to SIM card number, and if the alarm is moved, it can send you its new address to you.