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Grey explosion-proof IR bullet camera with fixed 4mm lens

China Bks

China Bks BL-EX340NI-I3 4MP Explosion-Proof IR Bullet Network Camera 4mm

SKU CH-ZPKP-QHFE1

4MP explosion-proof IR bullet camera with 4mm fixed lens, H.265+ compression, triple streams and 120dB WDR

  • Bundled Camera Number1 Camera
  • Camera Type4MP
  • Network CameraYes
  • TypeBullet Camera
  • ColorGray
  • Mounting LocationYes
  • 4 MP resolution with 2560 × 1440 detail
  • H.265+ compression cuts bandwidth to 256 Kbps
  • 120 dB WDR handles high-contrast scenes
  • Explosion-proof IP68 housing survives harsh environments
  • 4 mm lens gives 83° horizontal coverage

4MP Explosion-Proof Bullet Camera

This IP bullet camera delivers four-megapixel resolution at up to 30 frames per second. It uses a 1/3-inch progressive-scan CMOS sensor and supports H.265+, H.265, H.264+ and H.264 compression with triple streaming. The fixed 4 mm lens provides an 83-degree horizontal field of view. Infrared illumination enables zero-lux night vision. The housing meets IP68 waterproofing and explosion-proof ratings for hazardous environments.

Hazardous-Area Installations Only

The camera suits facilities that require certified explosion-proof equipment such as chemical plants, oil refineries or grain silos. ONVIF compliance allows integration with compatible network video recorders. Power-over-Ethernet simplifies cabling in classified zones. Buyers who need pan-tilt-zoom movement, motorised varifocal lenses or wireless connectivity should look elsewhere.

Fixed 4 mm Lens Determines Coverage

The 4 mm focal length fixes the horizontal field of view at 83 degrees and vertical at 45 degrees. This single optical parameter decides whether the camera covers the required scene width at the intended mounting distance. No zoom or focal-length adjustment is available after installation.

Highlights

  • 4 MP resolution with 2560 × 1440 detail
  • H.265+ compression cuts bandwidth to 256 Kbps
  • 120 dB WDR handles high-contrast scenes
  • Explosion-proof IP68 housing survives harsh environments
  • 4 mm lens gives 83° horizontal coverage

Specifications

Bundled Camera Number1 Camera
Camera Type4MP
Network CameraYes
TypeBullet Camera
ColorGray
Mounting LocationYes
ONVIFYes
HD Resolution1080P

Questions about this item

What network switch feature is needed to power this camera through its Ethernet cable?

The camera uses PoE for power, so the switch or injector must deliver Power over Ethernet; no separate power supply is required.

Can this ONVIF-compliant camera stream to an existing NVR that only supports H.264?

Yes — it encodes in H.264 and H.264+ as well as H.265, so an H.264-only recorder will still receive video.

Which LED indicator confirms the IR illumination is active at night?

There is no dedicated IR status LED mentioned; you verify night operation by checking the live view for the 0 Lux black-and-white image.

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