Hikvision DS-2CD2346G2H-IS2U/SL 4MP AcuSense Turret with Strobe and Siren

Hikvision DS-2CD2346G2H-IS2U/SL — 4 MP AcuSense turret with strobe and siren

The DS-2CD2346G2H-IS2U/SL is a 4 MP fixed turret from Hikvision's G2H AcuSense range, built around active deterrence. When it classifies a person or a vehicle inside a rule you've drawn, it fires a white strobe and an audible warning through its own speaker — the intruder is challenged on site, rather than the event simply being recorded for someone to find later.

AcuSense deep-learning classification filters people and vehicles from foliage, rain, shadows and animals, so line crossing, intrusion, region entrance and region exiting can be set to trigger only on the target types that matter.

How it compares with the 8 MP DS-2CD2386G2H-IS2U/SL

The two cameras share a body, a strobe, a speaker and the same analytics. The difference is the sensor, and it is larger than the megapixel figures suggest: this camera uses a 1/3" sensor, the 8 MP model a 1/1.8". That affects low-light performance as well as detail. If the scene is dim as well as wide, the 8 MP model is not simply "more pixels" — it is a bigger sensor gathering more light. Where this 4 MP version wins is bit rate: an 8 Mbps ceiling against 16 Mbps means roughly half the storage and half the load on the recorder per camera.

Imaging

• 1/3" progressive scan CMOS, 2688 × 1520 at 25 fps (50 Hz)
• F1.0 aperture, 0.001 lux in colour, 0 lux with IR on
• 120 dB WDR for doorways, shutter openings and forecourts shot into strong backlight
• 30 m Smart Supplement Light IR at 850 nm, which throttles back rather than burning out a close subject
• BLC, HLC, 3D DNR and Defog; 4 programmable polygon privacy masks

Lens, coverage and DORI

This SKU is the 2.8 mm fixed-lens version on an M12 mount: horizontal FOV 100°, vertical 55°, diagonal 120°, depth of field from 1.9 m. Hikvision's published DORI figures at 2.8 mm are detect 63 m, observe 25 m, recognise 12 m, identify 6 m. Treat the identify figure as the real constraint — for evidential facial detail the subject needs to be within about 6 m of this lens. The 4 mm version of the same camera narrows the view to 81° and pushes identification to roughly 7 m.

Audio, alarm and storage

• Two built-in microphones and a speaker rated 105 dB at 10 cm — two-way audio through iVMS-4200 or Hik-Connect
• 1 audio in (line in), 1 audio out (line out), both two-core terminal block
• 1 alarm in, 1 alarm out (max. 24 VDC/24 VAC, 1 A) for existing detectors or sounders
• microSD/SDHC/SDXC to 512 GB, plus NAS (NFS, SMB/CIFS) and ANR to backfill footage recorded during a network outage
• H.265+/H.265/H.264+/H.264, 32 Kbps to 8 Mbps; ONVIF Profile S/T/G, ISAPI, SDK, ISUP
• The Ethernet port is 10/100, not gigabit — ample at an 8 Mbps ceiling, but worth knowing if you were planning to daisy-chain anything through it

Power, build and environment

• PoE IEEE 802.3at Class 4, max. 18 W — not 802.3af. The strobe and speaker push it beyond what an af port will supply, so check your switch or NVR port budget first.
• Or 12 VDC ± 25%, 1.34 A, max. 16 W via Ø5.5 mm coaxial plug with reverse polarity protection
• Metal cover and metal main body, IP67 to IEC 60529-2013
• −30 °C to 60 °C, humidity 95% or less non-condensing
• Ø138.3 mm × 115.4 mm, approx. 780 g

The /SL and /SRB distinction

Hikvision publishes one datasheet covering both variants, and they differ in a single line: the /SL carries a white light, the /SRB a red-and-blue flashing light. This listing is the white-light /SL. Sensor, lens, analytics and audio are otherwise identical.

What you'll need with it

• An 802.3at PoE switch or NVR port, or a 12 VDC supply
• An AcuSense-capable Hikvision NVR if you want human/vehicle classification carried through to smart search on the recorder
• A microSD card for edge recording or ANR backfill — not supplied
• A wall or pole bracket unless it is going straight onto a flat soffit or ceiling

Frequently asked questions

Do the strobe and siren work without a recorder?

Yes. The camera's own event rules drive both, so it deters on a standalone install. A recorder is only needed for centralised recording and review.

Can I record my own warning message?

Custom audio warnings can be uploaded through the camera's web interface alongside the default tones.

Is this a ColorVu camera?

No. This is AcuSense with infrared night vision, so the image goes to black and white in darkness. For full colour at night, look at the ColorVu or Smart Hybrid Light models.

Will it work on a third-party NVR?

It supports ONVIF Profile S, T and G, so it will record on most ONVIF recorders. The AcuSense classification, strobe and audio features are best supported on Hikvision recorders.

Trade pricing

Zenith Security Co is an authorised Hikvision partner. Prices shown are for trade account holders — contact us for account terms and stock availability.