Dahua DHI-ARC3800H-W2(868) – Wireless Alarm Hub 2, 150 zones, 868 MHz, Wi-Fi

The Dahua DHI-ARC3800H-W2(868) is a wireless alarm hub (Hub 2) from the AirShield series, designed to protect residential properties, offices, retail outlets and small commercial premises. It manages up to 150 wireless alarm devices on the 868 MHz band and instantly notifies the alarm receiving centre and the mobile app (DMSS / DoLynk Care) upon intrusion, while forwarding video clips from PIR cameras and IP cameras for full situational awareness.

Key features

• Wireless zones: up to 150 channels for wireless peripherals (6 sirens, 64 PIR cameras – max. 8 indoor, 64 keyfobs, 8 keypads, 4 repeaters)
• Frequency: 868.0–868.6 MHz (EIRP max. 25 mW)
• Device communication: two-way with frequency hopping for stable and reliable wireless transmission
• Communication range: up to 2,000 m in open space
• Encryption: AES-128
• Network connectivity: Ethernet (1× RJ-45, 10/100 Mbps) and 2.4 GHz Wi-Fi; multi-network redundancy supported
• IP camera integration: up to 8 IP cameras for alarm video verification
• Audio: 1 audio output with volume control and built-in speaker for voice broadcast
• Backup power: built-in 4,750 mAh rechargeable lithium battery – up to 12 hours of operation during mains failure
• Power supply: 100–240 V AC, 50/60 Hz; power consumption ≤ 12 W
• Arming/disarming methods: mobile app, keypad, keyfob, card, scheduled timer
• Updates: cloud-based firmware update with automatic recovery on failure
• Setup & configuration: wired (LAN) and AP network configuration modes for easy app onboarding
• Compatible apps: DMSS and DoLynk Care (iOS / Android)

The DHI-ARC3800H-W2(868) is the ideal choice for system integrators and installers seeking a scalable, reliable and easy-to-deploy wireless alarm solution without a built-in GSM/4G cellular module.