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White explosion-proof IR dome IP camera with 4mm lens

China Bks

China Bks BL-EX420MNI-I 2MP Explosion-Proof IR Dome IP Camera 4mm Lens IP68 H.265+ Face Detection

SKU CH-M4MB-PBAFB

Explosion-proof dome IP camera captures 2 MP video with IR night vision and a 4 mm lens

  • TypeIP Camera
  • Sharp 1080p footage at 30 fps backed by 1920 × 1080 resolution
  • Clear night vision to 0 lux with IR illumination
  • Explosion-proof housing meets IP68 waterproof rating
  • Efficient H.265+ compression cuts bandwidth to 256 Kbps minimum
  • Wide 83° horizontal view from 4 mm fixed lens

Explosion-Proof IR Dome IP Camera

The China Bks BL-EX420MNI-I is a 2 MP explosion-proof IR fixed dome network camera built for hazardous-area surveillance. Its IP68-rated housing resists water and dust ingress while the integrated IR illumination provides 0 Lux night vision. The 1/3" progressive scan CMOS sensor delivers 1920 × 1080 resolution at up to 30 fps. Triple-stream encoding with H.265+ reduces bandwidth and storage demands.

Upgrade from standard dome cameras

This model replaces conventional IP domes that lack certified explosion-proof construction or the 120 dB wide dynamic range needed for high-contrast industrial scenes. The jump is worth it when the installation site is classified for explosive atmospheres or when 3D DNR and HLC are required to suppress noise and glare in 0.01 Lux colour conditions. Standard domes cannot meet the same safety or low-light performance.

Capacity and headroom

The 4 mm fixed lens at F1.6 yields an 83° horizontal field of view, covering broad indoor or perimeter zones with a single unit. Pan adjustment spans 0° to 360° and tilt 0° to 90° for flexible aiming. Triple streams support simultaneous 1080p recording, 720p live view and 640 × 480 mobile streaming. The 16 Mbps peak bit-rate ceiling and 1/100,000 s minimum shutter limit ultra-high-motion or ultra-low-light analytical workloads.

Highlights

  • Sharp 1080p footage at 30 fps backed by 1920 × 1080 resolution
  • Clear night vision to 0 lux with IR illumination
  • Explosion-proof housing meets IP68 waterproof rating
  • Efficient H.265+ compression cuts bandwidth to 256 Kbps minimum
  • Wide 83° horizontal view from 4 mm fixed lens

Specifications

TypeIP Camera

Questions about this item

What size mounting hole does the M12 lens mount require on this BL-EX420MNI-I dome camera?

The camera uses an M12 lens mount; the mounting surface must accommodate an M12 thread pattern for secure attachment.

Which wiring step is most often missed when installing this IP68-rated explosion-proof dome camera?

Connecting the IR cut filter auto-switch wiring and sealing all cable glands to maintain the IP68 waterproof rating are the steps most frequently overlooked.

How often should the IR-cut filter mechanism be checked on this 120 dB WDR camera?

Inspect the IR cut filter with auto switch annually; clean the dome cover and verify the 3D DNR and HLC settings remain calibrated for low-light performance.

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