2016UNE-EN 50131-2-7-1:2013/A2:2016 Alarm systems - Intrusion and hold-up systems - Part 2-7-1: Intrusion detectors - Glass break detectors (acoustic)
2014UNE-EN 50131-2-7-1:2013/IS1:2014 Alarm systems - Intrusion and hold-up systems - Part 2-7-1: Intrusion detectors - Glass break detectors (acoustic)
2014UNE-EN 50131-2-7-1:2013/A1:2014 Alarm systems - Intrusion and hold-up systems - Part 2-7-1: Intrusion detectors - Glass break detectors (acoustic)
2013UNE-EN 50131-2-7-1:2013 Alarm systems - Intrusion and hold-up systems - Part 2-7-1: Intrusion detectors - Glass break detectors (acoustic)