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Silver cylindrical explosion-proof bullet camera with IR lens and mounting bracket

China Bks

China Bks BL-EX320NI-I3 2MP Explosion-Proof IR Bullet Network Camera 4mm

SKU CH-W75R-DA640

Explosion-proof IR bullet IP camera with a 4 mm lens, 1080p at 30 fps, H.265+ compression and 120 dB wide dynamic range

  • Network CameraYes
  • TypeBullet Camera
  • Mounting LocationYes
  • ONVIFYes
  • HD Resolution1080P
  • Explosion-proof housing protects the camera in hazardous areas
  • 120 dB wide dynamic range captures detail in high-contrast scenes
  • 01 lux colour sensitivity with IR provides clear night images
  • H.265+ compression reduces bandwidth and storage needs
  • 4 mm fixed lens gives 83° horizontal field of view

Explosion-Proof 2 MP Bullet Camera

This explosion-proof IR bullet network camera delivers 1920 × 1080 resolution at 30 fps using a 1/3" progressive scan CMOS sensor. It supports H.265+, H.265, H.264+ and H.264 compression with triple-stream output. The IP68-rated housing and 4 mm fixed lens suit hazardous-area monitoring where standard cameras cannot be deployed.

Upgrade From Standard IP Bullets

The jump is worth it when the installation site carries an explosion risk or requires 120 dB wide dynamic range for high-contrast scenes. Colour sensitivity reaches 0.01 Lux at F1.2 and 0.018 Lux at F1.6, dropping to 0 Lux with IR active. ONVIF compliance preserves existing VMS integration while adding the rugged enclosure.

Hazardous-Area Installers

This model fits operators who need a fixed 4 mm lens with 83° horizontal FOV and pan/tilt/rotate adjustment up to 360°/90°/360°. Buyers requiring motorised zoom, a different focal length or a non-explosion-proof form factor should look at alternative bullet or dome cameras.

Highlights

  • Explosion-proof housing protects the camera in hazardous areas
  • 120 dB wide dynamic range captures detail in high-contrast scenes
  • 01 lux colour sensitivity with IR provides clear night images
  • H.265+ compression reduces bandwidth and storage needs
  • 4 mm fixed lens gives 83° horizontal field of view

Specifications

Network CameraYes
TypeBullet Camera
Mounting LocationYes
ONVIFYes
HD Resolution1080P

Questions about this item

What diameter mounting hole does the M12 lens mount on the BL-EX320NI-I3 require?

The camera uses an M12 lens mount, which needs a 12 mm threaded opening on the bracket or housing.

Which step is often missed when sealing the IP68-rated bullet camera for outdoor use?

Installers sometimes forget to tighten the gland connector and apply waterproof tape to the Ethernet cable entry, breaking the IP68 seal.

How often should the IR-cut filter mechanism be checked on this explosion-proof model?

Inspect the IR-cut filter and clean the lens window every 12 months to maintain 0.01 lux colour sensitivity and 0 lux IR performance.

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