Dahua 8MP IPC-HDW3849HP-AS-PV-ANZ-S2 (4K) TIOC 2.0 Eyeball WizSense Network Camera

Active Deterrence: Strobe and Siren

A strobe light and audible siren trigger automatically when a person or vehicle is confirmed in a defined zone. The value is entirely in the timing — a response delivered while someone is still deciding whether to proceed does work that footage reviewed the next morning simply cannot.

Two-Way Audio

A built-in microphone and speaker let you speak directly to whoever is on site through the DMSS app from anywhere. Pre-recorded voice warnings can also play automatically on detection. Being addressed by a live voice is a markedly stronger deterrent than an alarm tone alone.

SMD 4.0 Classification

Deep learning that separates people and vehicles from animals, foliage and shifting shadows before anything triggers. On a deterrence camera this accuracy matters twice over — it governs your notifications and it decides when the siren fires. A camera that alarms at possums becomes a neighbourhood problem quickly.

8MP 4K Resolution

3840 × 2160 gives real crop headroom during review — you can zoom hard into a corner of a recorded frame and still resolve something usable. That matters on a deterrence camera as the fallback for the occasions when the strobe and siren do not work.

Smart Dual Illumination

Infrared and warm white illuminators reaching 30 m, switching automatically. The camera runs infrared through ordinary night hours — dark and unobtrusive — then brings in warm light for full-colour capture the moment a target is confirmed. Colour evidence when it counts, without a light burning all night.

Perimeter Protection Zones

Tripwire and intrusion rules, both supporting human and vehicle classification. Draw a line across a side gate or a zone around a shed and the deterrence fires only when a classified target actually crosses it — filtering by what moved and where it went, not simply that something moved.

Starlight Low-Light Processing

Starlight technology extends usable image quality into low illumination, holding detail through the dusk and dawn windows where cheaper cameras have already degraded into noise. See Buyer Tip 1 for an honest comparison against the 6MP version of this camera.

AI Coding and Flexible Streams

Smart H.265+/H.264+ plus Dahua's AI coding, which analyses scene content to cut bitrate further again — genuinely important at 4K where storage costs scale fast. ROI and flexible coding let the camera adapt to whatever bandwidth and drive capacity you have.

IP67 Housing, PoE Powered

Fully dust-tight and sealed against water for exposed eave, soffit and wall positions. Runs on standard PoE so one Cat6 run carries data, power, audio and alarm control together. Image processing includes WDR, HLC, BLC, 3D NR, rotation mode and digital watermarking.

Driveways, Carports and Vehicle Storage

Vehicle break-ins are overwhelmingly opportunistic and depend on a quiet, unobserved few minutes. A strobe and siren firing as soon as someone approaches removes exactly that. Mounted at eave height across a driveway, the camera covers both the vehicles and the approach to the house, and the warm light captures colour detail at the moment of the trigger.

Yards, Sheds and Equipment Storage

High-value equipment sitting unattended overnight is a standing target, and yards are usually too large to secure physically. An intrusion zone drawn around the compound with deterrence armed after hours means anyone entering meets light and noise immediately, while you get a notification and can speak through the camera from wherever you are.

Closed Retail and Commercial Premises

Loitering and after-hours access at shopfronts, rear doors and loading areas is common and rarely worth a call-out. Two-way talk lets a manager address someone directly from home — which resolves the great majority of these situations in seconds, without anyone attending the site or a monitoring bill.

Gates, Side Access and Boundaries

The quiet points around a property are where people actually get in, and they are usually the least covered. A tripwire across a gate line with human classification produces clean, targeted after-hours alerts plus an immediate response, rather than reporting every cat and gust of wind through the hedge.

Choose this model if…

• You want the camera to intervene, not just record — you have a recurring problem rather than a hypothetical risk.
• You want 4K crop headroom as the fallback for when deterrence does not work.
• The site has reasonable ambient light, or you are relying on the 30 m illumination.
• You want to speak to people on your property from your phone.
• 20 fps is adequate for the movement at that position.
• You are building on Dahua recorders and DMSS.

Choose a different model if…

• The site is genuinely dark. The 6MP TiOC uses a larger sensor and performs better in low light — see Buyer Tip 1.
• You need 25/30 fps with AI running. This caps at 20 fps with AI enabled.
• The camera is close to neighbours and a siren would cause more problems than it solves. A standard WizSense turret gives the same AI detection quietly.
• You want continuous colour all night regardless of activity. That is a WizColor camera.
• You need adjustable framing or longer reach. A motorised varifocal TiOC offers zoom with the same deterrence.
• You need readable plates on moving vehicles. That is a dedicated ANPR job.

What is a TiOC camera?

TiOC stands for Three-in-One Camera — Dahua's term for combining full-colour imaging, AI detection and active deterrence in one unit. The distinction from a normal camera is that last element. Instead of only recording an event and notifying you, it responds to it with light, sound and the option of your voice.

Is the 8MP better than the 6MP TiOC?

For daylight detail and crop headroom, yes. For low light, no — and this surprises people. The 8MP uses a 1/2.8″ sensor while the 6MP uses a slightly larger 1/2.7″, so this model fits more pixels onto less silicon and each one gathers less light. On a well-lit driveway the 8MP is the better buy. On a dark rural approach the 6MP will produce more usable footage. Tell us the site and we will tell you which.

Why does it record at 20 fps instead of 30?

Because the AI processing takes priority. Dahua's specification lists 8MP at 20 fps with AI enabled, and 25/30 fps only when AI functions are disabled. On a TiOC camera, disabling the AI would disable the human and vehicle classification that decides when the strobe and siren fire — which is the entire reason to buy this camera. So in practice you run it at 20 fps. For driveways, gates and perimeters that is entirely adequate; you would notice the difference only on fast movement close to the lens.

Does active deterrence actually work?

For opportunistic intrusion, generally yes — opportunists depend on being unobserved and unhurried, and a strobe and siren removes both conditions in about two seconds. It is less relevant against someone who has specifically targeted a property and expects a response. Treat it as a strong first layer that resolves most casual incidents on its own, not as a replacement for locks, lighting and an alarm system. The 4K resolution is your fallback for the times it does not work.

Will the siren go off constantly?

Not if it is set up properly. Deterrence triggers on SMD 4.0 classification, so it responds to people and vehicles rather than animals, foliage or shadows, and perimeter zones limit it further to specific areas. The two things that cause problems are zones drawn too wide — including a road or footpath — and leaving deterrence armed around the clock. Draw tightly, arm on a schedule, and it will fire when it should.

Can I turn the deterrence off when we are home?

Yes — deterrence can be armed and disarmed from the DMSS app, and it can run to a schedule. Recording and AI classification continue regardless; only the alarm response is suspended. Most people run it armed overnight and while the property is empty, and disarmed during normal household hours. Setting this up is the single thing that determines whether you keep using the feature.

Can I really talk to someone through it?

Yes. A built-in microphone and speaker support live two-way talk through the DMSS app from anywhere with a connection, and pre-recorded voice warnings can be set to play automatically on detection. In practice a live voice is far more effective than a recording — being addressed directly ends most situations immediately.

Does it record in colour all night?

It records colour when something is detected. The camera runs infrared through ordinary night hours and switches to warm white light — giving full colour — when SMD 4.0 confirms a person or vehicle. That is deliberate: you get colour of the events that matter without a white light burning above your driveway all night. If you want an unbroken colour record regardless of activity, look at WizColor instead.

Are there legal issues with the audio or the siren?

Two things worth checking. Audio recording is governed by state and territory surveillance device legislation, which restricts recording private conversations — in Victoria that is the Surveillance Devices Act 1999. A speaker adds a further dimension in shared or public-facing spaces, so signage matters and legal advice is sensible for workplaces or publicly accessible sites. Separately, a siren near residential neighbours may fall under local council noise provisions, so it is worth checking your council's requirements before installing.

Will it work on a non-Dahua NVR?

Video recording will generally work via ONVIF. Deterrence rules, perimeter zone management, SMD 4.0 event handling, two-way talk and DMSS integration depend on the recorder understanding Dahua events, which in practice means a compatible Dahua NVR. Since the deterrence is the entire reason to buy this camera, pairing it with a Dahua recorder is the sensible approach — we can confirm compatibility with what you already have.

How much storage will four of these use?

Considerably more than a 1080p or 4MP system — that is the practical cost of 4K, though 20 fps helps compared with a 30 fps camera. AI coding and H.265+ offset a good deal of it. If you have a retention target in mind, tell us the camera count and we will size the drive properly. Also confirm your recorder handles 8MP per channel, or it will downscale the stream and waste the resolution.

Where can I buy it and what support is included?

Available from Total Security Equipment online and across both showrooms, with Australia-wide shipping and compatible Dahua NVRs, brackets, junction boxes, storage and PoE gear in stock. Trade accounts and volume pricing are available for installers, and our team can help with zone setup, deterrence scheduling and NVR pairing so the camera works properly from day one.

Melbourne HQ

26 Davies Ave., Sunshine North, VIC 3020
03 9079 5566

Sydney Branch

38 Lisbon St., Fairfield East, NSW 2165
02 8722 0348

Ordering & Support

• Australia-wide shipping
• Genuine Dahua ANZ stock with local warranty support
• Compatible Dahua NVRs, brackets and storage in stock
• Trade accounts and volume pricing
• Phone support on zone setup and deterrence scheduling
• Download Spec Sheet