Dahua ARD512 868MHz Wireless Glass Break Detector for ARC3000H Alarm System

A glass break detector monitors a large area of glazing from one device, rather than requiring individual vibration sensors or contacts on each window. Positioned on the ceiling or wall opposite the protected glazing, the detector listens for the specific frequency signature produced by shattering glass: the initial low-frequency impact thud followed by the high-frequency tinkling of breaking glass shards. Both frequency components must be detected for the alarm to trigger, providing immunity to false alarms from single-source sounds.

Coverage radius for a ceiling-mounted glass break detector typically extends to 5 to 9 metres depending on the detector specification, making one device appropriate for a shopfront window, a large glazed office partition, or a set of adjacent windows within the detection range.

In conjunction with PIR detectors that activate after an intruder has entered through a broken window, a glass break detector provides earlier detection at the moment of window breach, before the intruder reaches the protected interior area. This earlier detection point can trigger the siren before the intruder has retrieved items from the premises.

For Dahua ARC3000H alarm system installers specifying glass break protection at retail, commercial, and residential premises with large glazed areas across London and the UK, the ARD512 provides the wireless glass break detector for this specification.

Key Features

• Wireless glass break detector for ARC3000H alarm systems
• Covers large glazed areas from one device without individual pane sensors
• Dual-frequency detection: impact thud and glass tinkling for false alarm immunity
• Earlier detection than PIRs: triggers at window breach before intruder enters
• 868MHz wireless: no cable required from detector to hub
• Ceiling or wall mount opposite the protected glazing