Dahua DB41AB – 4MP 2K Wi-Fi Video Doorbell, Ultra-Wide Fisheye Lens, AI Detection

The Dahua DB41AB is a smart Wi-Fi video doorbell from Dahua's wireless series. Thanks to its 4MP sensor (2K, 2560×1440) and ultra-wide fisheye lens with a 120° horizontal field of view, it captures significantly more of the area in front of an entrance than conventional fixed lenses. Passive IR motion detection and AI analytics (human and vehicle detection) deliver smart notifications with fewer false alarms, while two-way audio enables direct communication with visitors via the DMSS mobile app.

Key features

• Image sensor: 1/3″ CMOS
• Resolution: 4MP – 2560×1440 @ 15 fps (2K)
• Lens: Fixed F2.2; field of view H: 120°, V: 66°, D: 143°
• Night vision: 2 IR LEDs, range up to 10 m; ICR filter (auto colour/B&W)
• WDR: DWDR for high-contrast scenes
• Video compression: H.265, H.264, H.264H, H.264B
• Streams: Main: 2560×1440 / 1920×1080 / 1280×720 @ 15 fps; Sub: 640×360 @ 25 fps
• AI features: Human detection, vehicle detection, abnormal sound alarm, PIR passive motion detection
• Audio: Two-way audio; built-in microphone and speaker; G.711a compression
• Storage: MicroSD slot, up to 256 GB (card not included)
• Wi-Fi: IEEE 802.11 b/g/n/ax (Wi-Fi 6), 2.4 GHz; Bluetooth for initial pairing
• Power supply: USB-C (5 VDC ±5%, 2 A) or binding post (10–24 VDC / 14–24 VAC, 1.0 A)
• Power consumption: Basic: 1.7 W; Max: 5.3 W (at 5 VDC)
• Operating temperature: –20°C to +55°C
• Operating humidity: ≤ 95%
• Housing: Plastic, colour: black
• Dimensions: 135 × 45 × 24.2 mm; Weight: 0.11 kg
• Mobile app: Dahua DMSS (iOS / Android)

The Dahua DB41AB is well suited for residential properties, offices, and small businesses requiring reliable video monitoring of entry points without the need for cabled infrastructure.