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                                        GLASS 
                                          BREAK DETECTORS  
                                           
                                          Glass Break detectors, also known as 
                                          Acoustical Sensors, pick up certain 
                                          levels or tones that are emitted when 
                                          glass breaks. These levels are sometimes 
                                          not able to be heard with the human 
                                          ear. There are 2 types of glass break 
                                          detectors available – Plate Glass 
                                          and Laminated. The difference being 
                                          Laminated Glass makes more of a thud 
                                          when it is broken. It is important to 
                                          get the right type as one doesn’t 
                                          usually work on the opposite type of 
                                          glass.   
                                          Usual cost is $155. inc GST fully installed 
                                          if done at the time of original installation | 
                                       
                                     
                                     
                                     
                                     
                                     
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