DS-2CD2043G3-LI(2U)Y 4 MP Acusense Smart Hybrid Light Fixed Bullet Network Camera
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Compact AcuSense bullet camera
DS-2CD2043G3-LI(2U)Y product overview
The DS-2CD2043G3-LI(2U)Y is a 4 MP fixed bullet camera designed for straightforward outdoor monitoring with AcuSense classification, Smart Hybrid Light and an arrayed dual-microphone. It suits projects that need cleaner human and vehicle alerts and flexible night illumination without the active warning hardware of the /S(L)(RB) family.
System at a glance
Core capabilities
AcuSense classification
Human and vehicle filtering helps make motion, line-crossing and intrusion events more relevant.
Smart Hybrid Light
Infrared and white-light operation can be selected to balance discreet monitoring, color detail and deterrence.
Audio context
The dual-microphone array can add useful sound information to supported recording and live-view workflows.
Efficient recording
H.265+ compression and 120 dB WDR support bandwidth planning and difficult backlit scenes.
Key specification summary
| Resolution | 4 MP network video |
|---|---|
| Lens selection | Fixed lens options; select before ordering |
| Night illumination | Integrated infrared and white light with configurable modes |
| Audio | Built-in arrayed dual microphone |
| Protection | IP67 outdoor housing |
Best-fit applications
Filter vehicle and person events while preserving night-scene flexibility.
Monitor entrances, delivery doors and exterior walkways.
Use compact fixed coverage with integrated audio capture.
Compatibility and pre-order checklist
- ✓Select the lens from the required field of view and target detail.
- ✓Confirm the desired Smart Hybrid Light behavior and visible-light policy.
- ✓Verify NVR or VMS support for AcuSense events and microphone audio.
- ✓Check PoE capacity, cabling, mounting surface and weather sealing.
- ✓Use the /S(L)(RB) family instead if built-in active warning hardware is required.
Frequently asked questions
Does the LI2U model include a speaker or active warning?
The standard LI2U is positioned around imaging, hybrid illumination and dual-microphone audio capture. Choose the /S(L)(RB) family when built-in warning functions are required.
Why does the camera use both infrared and white light?
Infrared supports discreet monochrome night viewing, while white light can provide color detail or a visible response. The selected operating mode controls how they are used.
What does the dual microphone add?
It captures audio with the video stream for compatible recording and live-view systems. Audio use must follow local privacy rules.
Can the field of view be changed after installation?
This is a fixed-lens family, so select the correct focal length before purchase and verify the scene with a field-of-view calculation.
Related planning resources
Compare network camera collection, review network video recorders, plan with network transmission equipment, or use the IPC and NVR matching guide.
Complete product data
DS-2CD2043G3-LI2UY 4 MP Acusense Smart Hybrid Light Fixed Bullet Network Camera
- High quality imaging with 4 MP resolution
- Upgraded imaging performance with Powered by DarkFighter
- Smart Hybrid Light: Smart Mode & IR Mode & White Light Mode
- Anti-corrosion design for stable protection (NEMA 4X)
- Person and vehicle classification based on deep learning
- 130 dB & AI WDR, upgraded performance, with auto on/off
- Crystal-clear audio with Arrayed Dual-Mic (-2U models)
- Dust and water resistant (IP67)
Available models:
- DS-2CD2043G3-LI2UY(2.8mm)
- DS-2CD2043G3-LI2UY(4mm)
- DS-2CD2043G3-LI2UY(6mm)



