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With its 1/2.7" CMOS sensor, the Dahua HAC-B1A21 captures 1080p video for security monitoring. A 4-in-1 switchable output links the unit to CVI, TVI, AHD, or CVBS recorders. This version moves from the 1MP sensor of the HAC-B1A11 to a 2MP resolution for sharper imaging.
Key Features
- 4-in-1 Video Output: Switchable BNC port supports CVI, TVI, AHD, and CVBS formats. It matches most existing DVR systems without hardware conflicts.
- IP67 Weatherproof Protection: Ingress rating of IP67 prevents hardware damage from dust and water. Road dust and heavy rain won't stop the feed.
- 20m Smart IR: Infrared LEDs adjust intensity based on object distance in the dark. Faces remain visible instead of washing out in white.
- 800m Coaxial Transmission: Signal travels 800 meters over RG6 cable at 1080p resolution. Long cable runs maintain video clarity without signal boosters.
- Wide Operating Temperature: Operating range covers -40°C to +60°C for extreme environment survival. Direct heat from the sun won't trigger thermal shutdowns.
Frequently Asked Questions
Is Dahua HAC-B1A21 waterproof?
The IP67 rating protects the internals against submersion in 1 meter of water for 30 minutes. It operates through heavy rain and high humidity without moisture buildup.
What is the IR range of Dahua HAC-B1A21?
The Smart IR system illuminates objects up to 20 meters away in total darkness. Built-in logic prevents image overexposure when subjects move close to the lens.
