1x  Hikvision 8MP 2.8mm AcuSense Darkfighter Turret Network IP Camera Built-in Mic DS-2CD2386G2H-IU (4mm Lens)

Frequently Asked Questions:

• What exactly is the DS-2CD2386G2H-IU / DS-2CD2386G2H-ISU / -SL?
  It’s an 8MP (4K, 3840×2160) Hikvision turret network camera from the AcuSense line with DarkFighter low-light tech. The “-U” suffix indicates a built-in microphone; variants such as “-ISU” or “-SL” add strobe/siren or audible warnings.

• What image quality and lens options does it offer?
  It records true 4K (8MP) up to the camera’s rated fps and comes in fixed 2.8 mm or 4 mm lens options—choose 2.8 mm for wider coverage or 4 mm for longer reach. Specs and field-of-view numbers are in the official datasheet.

• How good is its night/low-light performance (DarkFighter)?
  Very good for a fixed turret: the DarkFighter sensor gives ultra-low-light colour performance (min. illumination quoted around 0.0008 Lux at F1.0) and IR for 0 lux B/W when needed — so you keep usable footage in very dim conditions.

• What is AcuSense and how accurate is the human/vehicle detection?
  AcuSense is Hikvision’s deep-learning filter that classifies and prioritises human and vehicle targets to cut false alarms (animals, leaves, lights). It’s not perfect (no AI is), but it materially reduces nuisance alerts for most site setups.

• Does this model record audio? Is two-way audio supported?
  The “-U” models include a built-in microphone for one-way audio recording; some variants/firmware can support two-way audio but check the exact model/variant and the NVR/VMS settings for full two-way support.

• Can I power it with PoE and what are the power options?
  Yes — it supports 802.3af PoE and can also be powered by 12 V DC. Typical max power consumption is low (around single-digit watts), so PoE is usually the easiest installation route.

• Does it support local storage (microSD) and what capacity?
  Yes — there’s a microSD slot for edge storage. Official listings commonly state support up to 512 GB for local recording. For long retention, use NAS/NVR as well.

• Will it work with third-party NVRs/VMS (ONVIF compatibility)?
  In most cases, yes — the camera supports standard network protocols and is ONVIF-compatible, so it integrates with many quality third-party recorders and VMS solutions. Always test a sample or follow recommended RTSP/ONVIF settings for best results.

• What common problems should I watch for (firmware/image issues)?
  Common community topics include firmware-related image artefacts, day/night colour switching and occasional offline/connectivity issues. Keep firmware and recorder software updated, apply recommended settings, and consult Hikvision manuals/troubleshooting threads if you see blockiness or colour problems. Community threads document a few firmware releases that caused artefacts — so test before wide deployment.

• Is it suitable for outdoor use in the UK, and does it have certifications?
  Yes — it’s built for outdoor use (metal body, IP67-rated ingress protection, temperature range suitable for most climates) and carries CE/EMC/ROHS approvals listed in the datasheet. For UK installs, also check local mounting, wiring and data-protection (GDPR) considerations if recording audio.

• What warranty and support are included?
  When purchased through an authorised Hikvision partner, like CCTVTEK, the product comes with a 3-year warranty. We also provide ongoing technical support to assist you throughout the warranty period and beyond.