Câmara de vigilância DAHUA PFW3849S-A180E2ASPV0280B 8MP Bullet

The DAHUA PFW3849S-A180E2ASPV0280B is an 8MP bullet surveillance camera that provides high-resolution video for outdoor monitoring. It has a 2.8 mm fixed focal-length lens, a 1/2.7" image sensor with effective pixels of 4096 × 1860, built-in microphone and support for local storage up to 256 GB. The camera is housed in a weatherproof white enclosure and supports Power over Ethernet (PoE) or 12 VDC power, operating across a wide temperature range.

Advantages

The camera delivers 8 megapixel resolution for detailed images, low-light performance down to 0.0005 lux, and integrated IR illumination for night monitoring. It offers flexible power options (PoE or 12 VDC), on-board audio I/O, alarm input/output and a compact bullet form factor suitable for many outdoor installations. The device also supports electronic shutter control (1/3 s–1/100,000 s) and microSD card storage up to 256 GB.

Suitable for

• Outdoor perimeter surveillance for homes and businesses
• Parking lots and building entrances
• Areas requiring high-resolution identification of objects or faces
• Sites needing continuous monitoring in low-light or night conditions

Key specifications

• Type: HDTV/Megapixel/Outdoor bullet camera
• Resolution: 8 MP (4096 × 1860)
• Sensor: 1/2.7"
• Lens: 2.8 mm, M12 mount
• Minimum illumination: 0.0005 lux; IR illumination for night
• Shutter: Electronic, Auto/Manual 1/3 s–1/100,000 s
• Audio: 1× Audio-In, 1× Audio-Out, built-in microphone
• Network/IO: 1× RJ45, 1× Alarm In, 1× Alarm Out
• Storage: Supports microSD cards up to 256 GB
• Power: PoE (802.3af) or 12 VDC (±30%)
• Operating temperature: –40 °C to +60 °C
• Dimensions: 183.1 × 99.0 × 78.0 mm; Colour: White

How to use

Mount the bullet camera in a suitable outdoor location with a clear field of view. Connect network and power via PoE or supply 12 VDC within the specified tolerance. Insert a microSD card if local recording is required and configure camera settings (resolution, exposure, IR, audio, and network) using the Dahua configuration software or web interface. Position the lens for the desired framing and secure the housing to maintain weatherproof protection.

Recommendations

For reliable long-term outdoor performance, install the camera under an overhang where possible, use PoE to simplify cabling, and format the microSD card via the camera interface before first use. Regularly check firmware updates from the manufacturer and schedule periodic cleaning of the lens and housing to maintain image quality.