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One-click alarm
DH-B02B
Alarm box (test + anti-mispress)
SOS one-button emergency alarm box, designed with anti-violence and anti-disassembly lock control, high-intensity audible and visual warnings, 4G wireless technology, and full-link emergency closed-loop features. It is designed for high-risk indoor and outdoor environments such as campuses, scenic areas, factories, and communities, offering a reliable, highly deterrent, and easy-to-deploy integrated emergency safety solution.
Features
One-Click SOS Alarm with Instant Response, Multi-Device CoordinationDual storage for audio and video evidence collectionCompatible with standard SIP, seamlessly integrating with mainstream IPPBXs, dispatching systems, smart parks, and campus platformsThe platform allows for remote monitoring of device status, enabling remote configuration, updates, and troubleshooting, as well as batch management of thousands of terminals, significantly reducing the maintenance costs of outdoor equipmentExternal high-intensity sound and light warning lights + 110dB sirens for wide-area alerts, providing a strong deterrent against illegal activitiesThickened sheet metal lock control enclosure, pry-resistant and impact-resistant, corrosion-resistant and aging-resistant, with service life increased by more than 5 times
| Processor | High-performance embedded System-on-Chip (SOC) processor |
| Operating system | Embedded LINUX operating system |
| Sensor | 200W pixel CMOS sensor |
| Network | 4G/Wired |
| Video Compression | H.264/25FPS |
| Audio Input | Built-in High-Sensitivity Omnidirectional Microphone |
| Audio Output | Built-in 5W speaker + 30W amplifier output |
| Audio format | G.711, G.713, GSM, PCM |
| Sound quality | Professional echo cancellation and noise suppression |
| Network Protocol | SIP, TCP/IP, DNP |
| Network Port | 10/100M Adaptive Ethernet Port |
| Alarm Interface | 3 digital input channels, 2 digital output channels |
| Power supply | POE/DC 12V 1A |
| Power consumption | 10W |
| Material | Lead-free galvanized steel plate |
| Dimensions | 268mm x 300mm x 100mm |
| Installation method | Wall-mounted |
| Operating temperature | -30°C to 75°C |



