Dahua Security Camera 6MP Bullet 2.8mm WizSense Starlight SMD4 - DH-IPC-HFW3666EP-AS-AUS
Dahua DH-IPC-HFW3666EP-AS-AUS: a 6MP WizSense 3 Series bullet with a wide 2.8 mm lens, IR to 30 m and SMD 4.0 human and vehicle detection, on one PoE cable.
- ✓6MP at 25/30 fps, 1/2.7" sensor
- ✓Fixed 2.8 mm F1.4 lens, 97° across
- ✓IR up to 30 m, colour to 0.005 lux
- ✓SMD 4.0, tripwire and intrusion with human and vehicle sorting
- ✓Built-in microphone, audio and alarm ports
- ✓IP67, PoE 802.3af or 12 VDC, microSD up to 256 GB
Description

6MP on a wide 2.8 mm lens.
SMD 4.0 sorts people from possums.
A metal WizSense bullet with a 97° view, 30 m of IR and human and vehicle detection built in, powered and connected over one PoE cable.
In one sentence: the DH-IPC-HFW3666EP-AS-AUS is a Dahua WizSense 3 Series 6MP IR bullet with a fixed 2.8 mm F1.4 lens, IR up to 30 m, SMD 4.0, a built-in microphone, audio and alarm ports, IP67 and 802.3af PoE.
Camera only. Recorder and cabling are separate.
This listing is one camera with the 2.8 mm lens. It needs PoE or a 12 V supply for power and a recorder, NAS or microSD card for the footage.
- DH-IPC-HFW3666EP-AS-AUS bullet camera
- A PoE NVR or an 802.3af PoE switch, or a 12 VDC supply
- Cat5e or Cat6 cable to the camera
- A recorder, NAS or microSD card (up to 256 GB) for the footage
Wide view, fewer false alerts.
The 2.8 mm lens covers 97° across, enough for a driveway, a yard or a shopfront from one corner. SMD 4.0 checks whether movement is a person or a vehicle before it alerts you, and tripwire and intrusion rules can be set to fire on people, vehicles or both.

Front
F1.4 lens, one IR LED.
Colour down to 0.005 lux and black and white to 0.0005 lux. At night the IR LED lights the scene to 30 m. 120 dB WDR and AI SSA keep backlit doorways and changing light readable.

Bracket
Metal bullet, IP67.
192.7 × 70.5 × 66.4 mm and 590 g. The bracket pans 360°, tilts 0–90° and rotates 360°, and fixes through three Ø 4.5 mm holes. Rated IP67, −40 °C to +60 °C.
How it goes in
From cable to alerts.
01
Run one cable
Cat5e or Cat6 to a PoE NVR or an 802.3af PoE switch. The camera draws up to 6.5 W on PoE. A 12 VDC supply also works.
02
Fix the bracket
Screw the base to the wall or eave, or add Dahua's PFA130-E junction box or PFA152-E pole mount, then aim the camera.
03
Add it to the recorder
Set the password in a browser or Smart PSS, then add it to a Dahua NVR, DSS or the DMSS app. ONVIF Profile S, G and T recorders also work.
04
Set the rules
Draw tripwire or intrusion zones, tick human and vehicle, and turn on SMD 4.0 for filtered motion alerts.
At a glance
DH-IPC-HFW3666EP-AS-AUS
Show specs
Resolution
6MP, 3072 × 2048 at up to 25/30 fps
Lens
Fixed 2.8 mm, F1.4 (M12)
Field of view
97° horizontal, 71° vertical, 129° diagonal
DORI
Detect 63.6 m; observe 25.4 m; recognise 12.7 m; identify 6.4 m
Image sensor
1/2.7" progressive CMOS
Low light
Colour 0.005 lux, B/W 0.0005 lux at F1.4; 0 lux with IR on
IR
1 IR LED, up to 30 m
Smart detection
SMD 4.0; tripwire and intrusion with human and vehicle sorting
Search
Quick Pick with a Dahua AI NVR, Smart Search with a smart NVR
Image
120 dB WDR, AI SSA, BLC, HLC, 3D NR, defog
Compression
H.265, H.264, Smart H.265+/H.264+, AI H.265/H.264; MJPEG on the sub stream; 3 streams
Audio
Built-in microphone; 1 in, 1 out (RCA)
Alarm
1 in (5 mA, 3–5 VDC), 1 out (300 mA, 12 VDC)
Storage
microSD up to 256 GB, NAS, FTP/SFTP
Network
1 × RJ45 10/100; ONVIF Profile S, G and T, Milestone, Genetec; 20 users
Power
12 VDC or PoE (802.3af); up to 5.3 W (12 V) or 6.5 W (PoE)
Protection
IP67, metal casing
Size and weight
192.7 × 70.5 × 66.4 mm, 590 g
Operating range
−40 °C to +60 °C, humidity under 95%
Software
DMSS (iOS, Android), Smart PSS, DSS
Warranty
Dahua 3-year (36-month) warranty for 3 Series cameras, handled in Australia through InFront

192.7 × 70.5 × 66.4 mm. Three Ø 4.5 mm fixing holes on a Ø 56 mm circle. Units mm [inch].
Pair it with
What this camera does not include
Recorder
A Dahua WizSense AI NVR
Powers and records the camera on one cable and adds Quick Pick search of people and vehicles from SMD events.
Power
An 802.3af PoE switch
If the recorder has no free PoE ports. Allow 6.5 W for this camera.
Mounting
Dahua PFA130-E junction box
Dahua's optional box for this bullet. It hides the cable tail under the bracket. The PFA152-E adds a pole mount.
Cabling
Cat5e or Cat6 cable
One run per camera, up to the usual 100 m Ethernet limit.
Where it is used
Where a wide bullet earns its keep.
Driveways
The car, the gate and the path to the front door in one view.
Backyards
Fences, sheds and side gates, with IR to 30 m after dark.
Shopfronts
Doors and footpaths, with audio from the built-in microphone.
Warehouses
Roller doors and loading bays from under the eave.
Small offices
Entries and car spaces, with alerts only for people and vehicles.
Farms and sheds
Machinery sheds and yards, rated −40 °C to +60 °C.
2.8 mm or 3.6 mm lens
| 2.8 mm (this listing) | 3.6 mm | |
|---|---|---|
| Horizontal view | 97° | 80° |
| Diagonal view | 129° | 107° |
| Close focus | 1.1 m | 1.7 m |
| Detect (DORI) | 63.6 m | 85.4 m |
| Recognise (DORI) | 12.7 m | 17.1 m |
| Identify (DORI) | 6.4 m | 8.5 m |
Both lenses are on Dahua's DH-IPC-HFW3666EP-AS-AUS datasheet under the same model code. This listing is the 2.8 mm lens; ask us if you need the 3.6 mm.
Common questions
Is a recorder included?
No. This listing is the camera only. It records to a Dahua NVR, a NAS, FTP or a microSD card of up to 256 GB.
Which lens is it?
2.8 mm, F1.4, covering 97° across. Dahua also makes this model with a 3.6 mm lens (80° across); ask us if you need that one.
How is it powered?
By 802.3af PoE or 12 VDC. It draws up to 6.5 W on PoE or 5.3 W on 12 VDC.
What frame rate does it record at?
Up to 25/30 fps at the full 6MP (3072 × 2048).
How far does the IR reach?
Up to 30 m from one IR LED, per Dahua's current datasheet. In colour it works down to 0.005 lux at F1.4.
How far away can it pick out a person?
With the 2.8 mm lens Dahua's DORI figures are 63.6 m to detect, 12.7 m to recognise and 6.4 m to identify.
What does SMD 4.0 do?
Smart Motion Detection classifies what caused the motion and filters out things that are not people or vehicles, such as animals, so you get fewer false alerts.
Which smart rules does it run?
Tripwire and intrusion, each able to sort people from vehicles, plus SMD 4.0 and AI SSA. Dahua does not list loitering, face detection or people counting for this model.
Does it record sound?
Yes. It has a built-in microphone, plus an audio input and output (RCA) for an external microphone or speaker. It has no built-in speaker or siren.
Will it work with a non-Dahua recorder?
It supports ONVIF Profile S, G and T and works with Milestone and Genetec. Quick Pick and Smart Search need a Dahua NVR.
What warranty does it have?
Dahua gives its 3 Series network cameras a 3-year (36-month) manufacturer warranty under Dahua Australia's warranty policy. Claims are handled in Australia through InFront Technologies: call 1300 736 970 or email [email protected].
Who can install the cable?
Concealed data cabling to the camera is customer cabling under AS/CA S009 and needs an ACMA-registered cabler. Plugging a patch lead into an existing outlet does not.
Supported by InFront Technologies.
Help choosing the recorder, switch or mounting: call 1300 736 970 or email [email protected]. The datasheet is on the Attachments tab.
Installation and safety
Low-voltage camera. PoE (802.3af, up to 6.5 W) or 12 VDC (up to 5.3 W). There is no mains connection on the camera. A new power point for a 12 V supply needs a licensed electrician.
Cabling. Concealed data cabling is customer cabling under AS/CA S009 and needs an ACMA-registered cabler.
Audio. Recording conversations is covered by state and territory surveillance laws. Check them, and use signage, before you switch the microphone on.
What it does not do. No Wi-Fi, no zoom, no built-in speaker or siren, no warm light and no face recognition.
Figures. From Dahua's DH-IPC-HFW3666EP-AS-AUS datasheet (Rev 002, July 2022).