DS-2CD2146G2H-ISU 2.8MM

The 4MP AcuSense dome with audio

Audio is more useful than people expect, especially in retail and commercial settings. The Hikvision DS-2CD2146G2H-ISU 2.8mm takes the standard 4MP AcuSense dome and adds a built-in microphone for audio capture. The U in the model designation indicates the audio capability, which records alongside video on the NVR for full event context.

In a retail dispute, audio captures what the customer actually said versus what they later claim. In a customer service incident, audio confirms the staff response was professional. In an after-hours investigation, audio of voices, footsteps, and incident sounds provides corroboration that purely visual footage cannot. For most commercial installations, the modest premium for the audio version is worth it every time.

What this camera is actually good at

• 4MP resolution. Sharp identification-grade detail at typical retail and office distances.
• Built-in microphone. Audio recorded alongside video, useful for context, dispute resolution, and investigation.
• AcuSense onboard AI. Human and vehicle classification at the camera level.
• Wide 2.8mm lens. 102° field of view from one ceiling mount.
• 120 dB true WDR. Bright window light against interior shadow handled cleanly.
• IP67 weather-sealed and IK10 vandal-resistant. Indoor or under-eave use.
• Up to 30m IR illumination. After-hours total-darkness coverage.
• Compact dome form factor. Discreet ceiling and soffit mounting.
• H.265+ compression.

Where this camera belongs

• Retail shop interiors where dispute resolution and customer service incidents need audio context
• Restaurant and hospitality venues capturing customer interactions and till transactions with audio
• Healthcare reception and consult areas where audio of patient interactions provides clinical and administrative context (with appropriate consent and signage)
• Office reception covering visitor and delivery interactions
• Workshop and small industrial interiors capturing equipment use and staff communication
• Front-door and entrance positions in commercial properties where audio of arrivals adds value

Audio recording: useful, with legal context

Audio recording in commercial settings in South Africa requires reasonable proportionality to the security purpose and (in most cases) appropriate signage notifying staff and visitors that audio is recorded. We talk this through and recommend signage as part of every audio-camera install. Healthcare and certain regulated settings have additional requirements around audio capture.

If you want active deterrent or higher resolution

• The DS-2CD2147G3-LIS2UY 2.8mm adds active strobe and siren, plus ColorVu full-colour night vision in the latest G3 generation.
• The DS-2CD2187G3-LIS2UY 2.8mm is the 8MP G3 ColorVu flagship with active deterrent.

If you want a different focal length or simpler features

• The DS-2CD2146G2H-I 2.8mm is the same camera without the audio. The right call when audio is not needed and the budget needs focusing elsewhere.
• The DS-2CD2146G2H-ISU 4mm swaps the wide-angle for a tighter lens. The right call for ceiling positions over 4 metres above the activity area.

Pairs cleanly with the DS-7616NXI-K2 16-channel NVR. Our installation guide covers commercial system design.

Properly installed and configured

Detection zones, schedule rules, audio capture configuration, and live testing on every camera as standard, across Pretoria East, Centurion, Midrand, and Johannesburg.

Full 3-year Hikvision South Africa warranty through authorised distribution. Pricing on the CCTV installation prices page.

Browse the full Hikvision IP camera range or read more about Hikvision CCTV systems. Current installation specials available. Common questions answered on the CCTV FAQ page.

How Hikvision ColorVu technology works

See how ColorVu 3.0 captures full-colour video in near-darkness, powered by AI image processing and refined sensor design.