Independently developed by Ribri, AHDs are our flagship product line and core pillar for low-altitude security, critical infrastructure protection and emergency on-site control. This portfolio builds a full-spectrum, multi-form acoustic equipment matrix covering eight complete product series, including: Omnidirectional Acoustic Device, Handheld Acoustic Hailing Device, Portable Directional Acoustic Device, Opto-Acoustic Hailing Device etc. It supports diverse deployment modes including tower mounting, individual carry, drone integration and opto-acoustic linkage, fully catering to alert, deterrence, public address and early warning missions across all special security scenarios.
Aiming to solve prevalent pain points of traditional audio warning equipment, AHDs delivers targeted acoustic security solutions covering diverse industrial fields, with differentiated performance to fit unique environmental and operational demands of different application scenarios:
Low-Altitude Security: Designed for airports, borderlines and key industrial zones, the gear emits long-range audio-visual alerts and directional deterrence against unauthorized drones and low-flying aircraft, preventing aerial trespassing, covert surveillance and other low-altitude hazards.
Critical Infrastructure Security: Deployed at power grids, nuclear plants, oil & gas fields and photovoltaic stations, the system creates an automatic perimeter defense via long-range audio-visual warning and directional acoustic deterrence, intercepting intrusions in advance to safeguard round-the-clock facility safety.
Maritime: Featuring superior salt-fog resistance, moisture-proof and wide-temperature tolerance, the units fit ports, coastlines and offshore platforms. They enable waterway surveillance, target deterrence, long-distance vessel communication and search & rescue announcements for persistent maritime security operations.
Mass Notification: Boasting high sound pressure, ultra-long coverage and high-fidelity audio, the devices broadcast evacuation and safety instructions across vast areas during floods, typhoons and fires, fixing the flaws of conventional speakers such as limited range, weak coverage and poor voice recognition amid noise.
Platform Integration: With lightweight modular design, the products mount seamlessly on UAVs, UGVs, patrol robots, vessels and fixed towers, establishing an integrated air-land-sea mobile security network and breaking the deployment limits of stationary equipment for roaming patrols and dynamic monitoring.
Public Safety: For law enforcement, border defense and large-event security, our non-lethal opto-acoustic deterrence enables long-range crowd dispersion, order maintenance and illegal gathering dispersal. It realizes mild, efficient on-site intervention while minimizing law enforcement risks.
Wildlife Protection: Combining variable-frequency acoustic signals with stroboscopic light linkage, the systems continuously repel birds and wild animals at airports, forests and farmlands, eliminating bird strikes, vegetation damage and crop losses through smart ecological protection.
The AHDs portfolio has a full range of acoustic security devices with various configurations and different performance, adapting to all complex security operation scenarios. With self-developed acoustic algorithms and hardware, each model has unique functions and stable industrial-grade performance. The core technical parameters of mainstream products are listed below for performance comparison and professional reference.
Product Series | Model Code | Advantage | Peak SPL@1m | Continuous SPL@1m | MAX Range | IP Rating |
Omnidirectional Acoustic Device | Delivers full 360° horizontal sound coverage | 145 | 140 | 1124 | IP65 | |
Handheld Acoustic Hailing Device | Lightweight design with built-in rechargeable battery | 147 | 138 | 1000 | IP65 | |
Portable Directional Acoustic Device | Compatible with multiple installation methods | 158 | 148 | 2239 | IP65 | |
Portable Directional Acoustic Device | Optional 4-color warning light accessories | 163 | 153 | 3981 | IP65 | |
Opto-Acoustic Hailing Devices | Integrated with built-in opto-acoustic PTZ camera | 156 | 146 | 1778 | IP65 | |
Opto-Acoustic Hailing Devices | Boasts industry-leading peak sound pressure level | 171 | 160 | 8913 | IP65 |