Saful TS-5517 built-in antenna door/window detector

Saful TS-5517 built-in antenna door/window detector Working with GSM alarm system Features 1.easy to install 2.Can work individually 3.can work with other alarm system 4.This is separated wireless door sensors, magnetic control,inner antenna 5.wireless transmit are separatad . 6.It can be installated in doors ,windows and other special places. Specifications Operating voltage DC12V Standby current ≤5uA Transmitting current ≤15mA Battery life 1 to 2 years Transmitting Freq. 315MHz,433MHz or 868MHz Sending distance >100m (in the open area) Code mode fixed code, roll code