- A magnetic switch for shutters using high endurance Aluminum shells  
                            - Flexible Aluminum brackets provides easy installations on any type of shutter door without damaging it  
                            - Built-in biased magnet to prevent defeat attempts from outside SPST  
                            - Strong rare earth magnet  
                            - NC type (open on magnet approach) switch connectable to loop circuit of any control panel  
                            - Epoxy molded waterproof structure  
                            - Contact resistance under 6Ω  Insulation resistance over 10MΩ at DC250V
                        
                            - High quality fire sensing/detect or cataching fire alarm signal to security system without altering fire alarm system - Supervised circuit  
                            - Self-testing and cover opening detection function (Detector Units)  
                            - Sensor unit mounting supervision