Features:1) The multifunction radio security system Model KD-103, adopting a bidirectional wireless module, is suitable for protection against break-ins and fires2) This system is composed of a wireless centrum, remote-controller, window and door detector, PIR detector, smoke detector, siren and flash alarm and alarm with telephone dialer3) The wireless centrum is the information centre and administers the other items4) Can be reached a figure of 96 detectors, which can be composed at random5) On the other hand, this system can be conveniently controlled within a certain distance producing area:China payment:T/T