Hikvision AcuSense 4MP mini in-ceiling dome camera, fixed 2.8mm, mic - DS-2CD2E43G2-U

Hikvision DS-2CD2E43G2-U AcuSense 4MP mini in-ceiling dome camera

When you need discreet, reliable surveillance in a retail store, office, or corridor, the Hikvision DS-2CD2E43G2-U fits right in - literally. Its compact in-ceiling form factor keeps it out of sight while the AcuSense deep learning engine keeps watch, distinguishing people and vehicles from false triggers so your team only responds to what matters. With a built-in microphone, 120 dB WDR, and H.265+ compression, it delivers clear audio and video without demanding excessive storage or bandwidth.

Key features

• 4MP resolution (2688 x 1520) for sharp, detailed footage
• AcuSense deep learning - human and vehicle target classification to reduce false alarms
• 120 dB Wide Dynamic Range for clear imaging against strong backlight
• Built-in microphone for real-time audio monitoring
• H.265+ compression for efficient storage and bandwidth use
• Perimeter protection: line crossing and intrusion detection
• Face detection smart event
• microSD on-board storage up to 512 GB
• PoE (IEEE 802.3af) or 12 VDC powered
• Tilt adjustable 0 to 75 degrees for flexible aiming
• 3-year warranty

Who is this for?

Ideal for indoor environments where a low-profile camera is needed - retail stores, offices, reception areas, corridors, and hospitality venues. The AcuSense engine makes it particularly well suited to sites where reducing nuisance alarms is a priority.

Camera

• Image sensor: 1/3" Progressive Scan CMOS
• Max. resolution: 2688 x 1520 (4MP)
• Min. illumination: Colour: 0.005 Lux (F1.6, AGC ON)
• Shutter time: 1/3 s to 1/100,000 s
• Angle adjustment: Tilt: 0 to 75 degrees
• WDR: 120 dB

Lens

• Focal length and FOV (2.8 mm): H: 103 degrees, V: 55 degrees, D: 122 degrees
• Focal length and FOV (4 mm): H: 84 degrees, V: 43 degrees, D: 100 degrees
• Aperture: F1.6
• Lens mount: M12

DORI

• 2.8 mm: Detect 56 m, Observe 22 m, Recognise 11 m, Identify 6 m
• 4 mm: Detect 85 m, Observe 34 m, Recognise 17 m, Identify 9 m

Video

• Main stream: 25/30 fps at 2688 x 1520, 1920 x 1080, 1280 x 720
• Sub-stream: 25/30 fps at 1280 x 720, 640 x 480, 640 x 360
• Third stream: 10 fps at 1920 x 1080, 1280 x 720, 640 x 480, 640 x 360
• Video compression: H.265+/H.265/H.264+/H.264 (main), H.265/H.264/MJPEG (sub), H.265/H.264 (third)
• Video bit rate: 32 Kbps to 8 Mbps
• ROI: 1 fixed region for main and sub-stream
• SVC: H.264 and H.265

Audio

• Built-in microphone: Yes
• Compression: G.711ulaw/G.711alaw, G.722.1, G.726, MP2L2, PCM, MP3, AAC-LC
• Sampling rate: 8/16/32/44.1/48 kHz
• Environment noise filtering: Yes

Network

• API: ONVIF (Profile S, Profile G), ISAPI, SDK, ISUP
• Protocols: TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, RTCP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv4, IPv6, UDP, Bonjour, SSL/TLS, PPPoE, SNMP, WebSocket
• Simultaneous live view: Up to 6 channels
• Users: Up to 32 users, 3 levels (administrator, operator, user)
• Storage: NAS (NFS, SMB/CIFS), ANR, microSD up to 512 GB
• Security: HTTPS encryption, IP filter, 802.1X, TLS 1.1/1.2, security audit log
• Client: iVMS-4200, Hik-Connect, HikCentral

Image

• WDR: 120 dB
• Privacy mask: 4 programmable polygon privacy masks
• Day/night switch: Day, Night, Auto, Schedule
• Image enhancement: BLC, HLC, 3D DNR

Interface

• Ethernet: 1 x RJ45 10/100M self-adaptive
• On-board storage: microSD/SDHC/SDXC up to 512 GB
• Built-in microphone: Yes
• Reset key: Yes

Events

• Basic: Motion detection (human and vehicle target types), video tampering alarm, exception
• Smart: Face detection
• Deep learning: Line crossing detection, intrusion detection (human and vehicle target types)
• Linkage: Upload to FTP/NAS/memory card, notify surveillance centre, send email, trigger recording, trigger capture

General

• Power: 12 VDC (±25%), 0.27A, max. 3.2W; PoE IEEE 802.3af, 36 to 57V, max. 4.2W
• Operating temperature: -10 to 50 degrees C
• Humidity: 95% or less (non-condensing)
• Dimensions: 93.9 mm diameter x 117.5 mm
• Material: Plastic body
• Languages: 33 languages including English

Frequently asked questions

What does AcuSense mean?
AcuSense is Hikvision's deep learning technology that classifies detected targets as human or vehicle. This dramatically reduces false alarms triggered by animals, leaves, or lighting changes - so your monitoring team only responds to genuine security events.

Does this camera record audio?
Yes. The DS-2CD2E43G2-U has a built-in microphone for real-time audio capture alongside video. Audio is recorded to the NVR or memory card depending on your setup.

Can I use this camera with a standard PoE switch?
Yes. It supports IEEE 802.3af PoE, which is the most common standard. A single Ethernet cable carries both power and data.

Is this camera suitable for outdoor use?
No - this is an indoor in-ceiling dome camera. For outdoor applications, consider Hikvision's AcuSense range with IP67-rated housings.