Dahua DH-HAC-HFW2501TUP-Z-A-DP-27135-S2 4K Starlight HDCVI IR Motorised Bullet Camera

Model: DH-HAC-HFW2501TUP-Z-A-DP-27135-S2

Who This Is For

When getting the field of view right without physically repositioning the camera is the priority, the Dahua HAC-HFW2501TUP-Z-A-DP-27135-S2 is the camera installers reach for. The 2.7mm-13.5mm motorised varifocal lens with autofocus lets you dial in coverage from a wide 113° horizontal angle down to a tight 31.4° from the XVR menu - no ladder required after commissioning. This suits sites where coaxial infrastructure is already in place: warehouses, logistics yards, industrial perimeters, and commercial properties upgrading from analogue without rewiring. The 5MP Starlight sensor pulls usable colour detail at 0.001 Lux, the 80m Smart IR covers long approaches in complete darkness, and the HDCVI signal runs up to 700m over existing RG59 or RG6 coax. For installers and property managers who need flexible framing, high-resolution coverage, and long-distance coaxial transmission in a single outdoor bullet, this is a direct and practical fit.

What This Camera Actually Does

Who Buys This Model

• Industrial facility managers upgrading existing coax: Sites with RG59 or RG6 already run to camera positions can replace old analogue heads with this camera and get 5MP HDCVI at up to 700m transmission - no new cabling required.
• Installers covering long outdoor approaches: The 80m Smart IR and 13.5mm tight end of the zoom range pushes identification distances to 21m and observation to 84m - suited to driveways, perimeter fences, and loading dock approaches where subjects need to be readable at range.
• Commercial property owners with high-contrast entry points: Retail car parks, gated entries, and warehouse gate systems where morning and afternoon sun creates extreme lighting variation are handled by 120dB WDR without needing manual mode changes.
• Security integrators specifying flexible framing: The motorised lens allows field of view to be set or adjusted post-installation from the XVR without physical access to the camera - valuable in commercial fit-outs where camera positioning gets finalised late in the project.

Honest Assessment

The HAC-HFW2501TUP-Z-A-DP-27135-S2 does three things well: it gives installers remote zoom and autofocus control on an HDCVI bullet, it combines Starlight low-light colour with 80m IR for genuine 24-hour outdoor performance, and it runs 5MP HD video over coaxial cable infrastructure that would otherwise need to be replaced. The 120dB WDR and full metal IP67 housing make it a practical outdoor perimeter camera for industrial and commercial applications. Available through Security Australia, it suits analogue-to-HDCVI upgrade projects where rewiring is not on the table. Where it will not be the right choice: if the site has no coaxial infrastructure and Cat5e/Cat6 is being installed fresh, an IP network camera will give broader compatibility, cloud access, and AI analytics that this analogue-format camera does not offer. Similarly, if wide-area coverage from a single camera position is required, a PTZ or multi-sensor camera covers more ground.

Before You Buy

Quick Fit Check

• Good match if: You have existing coaxial cabling and need to upgrade to 5MP resolution - the HDCVI format runs 5MP video over the same RG59 or RG6 cable up to 700m, and the DIP switch lets you select the format that matches your recorder.
• Good match if: The camera will be mounted at height or in a difficult-access location where adjusting the field of view after installation needs to happen from the XVR - the motorised varifocal with autofocus handles zoom and focus adjustment remotely without revisiting the camera.
• You may need a different model if: The installation involves new Cat5e or Cat6 cabling with no existing coax - an IP network camera will offer more flexibility, onboard analytics, and recorder compatibility in that scenario. Browse IP bullet cameras on securityaustralia.com.au for alternatives.

Key Features & Technical Specifications

Real-World Scenarios

How It Compares

• Choose this if: Existing coaxial infrastructure is in place and the site needs 5MP resolution, remote lens adjustment, and 80m IR without re-running cable.
• You may need a different model if: New Cat5e or Cat6 is being installed and onboard AI analytics, cloud access, or PoE simplicity are priorities - an IP network bullet camera with varifocal lens will be a stronger fit in that scenario.
• Pairs well with: A compatible Dahua XVR with 5MP HDCVI input and UTC (Up the Coax) control for remote lens management, and a 12V DC or 24V AC power distribution unit rated for the 12.5W draw with IR active.

Common Questions

1. Will this camera work with my existing coaxial cabling?

   Yes, provided the cable is RG59 or RG6 in reasonable condition. HDCVI transmits 5MP video, audio, and control data over a single coaxial cable up to 700m. If your existing runs are shorter than that and the cable is intact, this camera replaces the old analogue head at the camera end - the XVR at the recorder end needs to support 5MP HDCVI input.

2. How does the motorised zoom actually work - do I need to be at the camera to adjust it?

   No. The zoom and autofocus are controlled remotely via the XVR's camera menu using the data channel sent Up the Coax (UTC). After physical mounting and connecting the BNC cable, you adjust the focal length and the camera autofocuses at that zoom position from the recorder interface. A compatible Dahua XVR with UTC support is required - you cannot adjust the motorised lens from the camera body itself.

3. What is the optical zoom ratio on the 2.7mm-13.5mm lens?

   The zoom ratio is 5x (13.5mm divided by 2.7mm). This is an optical zoom range controlled by the motorised mechanism - not digital zoom. The confirmed 4x digital zoom is separate and applies additional enlargement on top of the optical position. For most outdoor installs, staying within the optical range preserves the full 5MP resolution at the chosen field of view.

4. Does this camera record audio?

   Yes, it has a built-in microphone that transmits audio over the coaxial cable via HDCVI to the recorder. There is no built-in speaker, so there is no two-way audio capability. Audio recording must be enabled on the connected XVR, which also needs to support audio input from HDCVI channels.

5. Will this camera work on a TVI or AHD recorder I already have?

   Yes, within resolution limits. The output format is selectable by DIP switch on the camera body - choose TVI or AHD and connect to your existing recorder. At TVI and AHD, the maximum resolution on this camera is 4MP (2560x1440), not 5MP. If you need 5MP output, the camera must be set to CVI mode and connected to a 5MP HDCVI-capable recorder.

6. How far can this camera identify a person at the 13.5mm zoom setting?

   The confirmed DORI identification distance at 13.5mm is 21m. At that distance, the image contains enough detail to identify the individual. Observation (enough detail to describe clothing and build) reaches 84m, and detection (presence of a person) extends to 210m. At the wide 2.7mm setting, identification drops to 6.4m and detection to 64m, reflecting the wider field of view.

7. Is this camera suitable for outdoor use in extreme Australian conditions?

   Yes. The IP67 rating prevents dust and sustained water ingress, the full metal casing handles physical durability, and the operating temperature range of -30°C to +60°C covers both alpine cold and extreme summer heat. The 4kV lightning protection is particularly relevant for exposed outdoor perimeter positions on poles or buildings in storm-prone regions. The ±25% AC and ±10% DC input voltage tolerance also accommodates power fluctuations common on rural and industrial sites. Contact the team at Security Australia if you need advice on mounting accessories or power supply options for specific site conditions.

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