Dahua HAC-HDBW2501RP-Z-27135 5MP Starlight Pro HDCVI IR Vandal Dome, WDR,ICR, Motorised 2.7~13.5mm,IR 30m

Model: HAC-HDBW2501RP-Z-27135

Who This Is For

For installers and security integrators who need to lock in a precise field of view after the camera is mounted, the Dahua HAC-HDBW2501RP-Z-27135 is built around that exact problem. Upgrading an older analogue system with existing coaxial cable runs is one of the most common scenarios this camera addresses - the motorised 2.7-13.5mm vari-focal lens means the angle can be dialled in remotely after installation without ladder access. At 5MP Starlight Pro with 120dB true WDR, it handles the high-contrast lobby entrances, reception areas, and internal corridors where fixed-lens cameras often struggle. The IK10 vandal resistance rating makes it appropriate for semi-public spaces such as stairwells, carpark internal areas, and retail back-of-house. HDCVI transmission over existing coax at up to 700 metres means no network infrastructure is required, which keeps analogue upgrade projects straightforward and cost-controlled.

What This Camera Actually Does

Who Buys This Model

• Security integrators upgrading analogue systems: Sites with existing coaxial cable runs that need a 5MP upgrade without replacing infrastructure - the HDCVI format transmits over existing RG59/RG6 up to 700 metres and is compatible with most current XVRs.
• Facility managers specifying stairwell and corridor coverage: The IK10 rating and IP67 housing handle semi-public interior locations where camera housing integrity matters, and the motorised lens allows field of view adjustment to suit corridor width without a camera change.
• Retail and commercial property installers: High-contrast retail environments with bright shopfront windows and shadowed interiors benefit directly from the 120dB true WDR, which keeps checkout counters and entry points legible across the full frame.
• Contractors managing difficult ceiling-mount positions: Plant rooms, high-bay storage areas, and mezzanines where precise angle adjustment from ground level after mounting is more practical than repeated ladder repositioning - the motorised zoom with auto-focus makes this achievable through the connected DVR or XVR.

Honest Assessment

The HAC-HDBW2501RP-Z-27135 does a specific job well: it brings 5MP Starlight Pro performance and a motorised vari-focal lens into a coaxial-connected dome housing. The combination of 120dB true WDR, 0.001 lux low-light sensitivity, Smart IR at 30 metres, and confirmed IK10 vandal resistance is genuinely strong for an HDCVI camera in this form factor. The motorised 2.7-13.5mm lens removes one of the most common analogue upgrade frustrations - having to physically reposition or relens a camera to get the correct coverage angle. Available through Security Australia, this model suits sites where coaxial infrastructure is already in place and an IP migration is not planned. Where this camera will not serve you: it does not operate over a network and has no IP output, so it cannot feed directly into an NVR, VMS, or remote viewing platform without an XVR in the chain. If your project is network-first or requires onboard AI analytics such as perimeter detection or object classification, an IP camera would be the more appropriate product type.

Before You Buy

Quick Fit Check

• Good match if: You are upgrading an existing analogue site with coaxial cable already in place and need 5MP resolution without replacing cable infrastructure - HDCVI transmits 5MP over RG59/RG6 up to 700 metres.
• Good match if: The installation involves a difficult ceiling position where the correct coverage angle cannot be confirmed until the camera is physically mounted - the motorised 2.7-13.5mm lens with auto-focus allows angle adjustment via the XVR without returning to the mounting point.
• You may need a different model if: Your project is built on IP network infrastructure and requires an NVR, remote VMS access, or onboard AI analytics - an IP dome or turret camera would be more suitable and you can find those options at securityaustralia.com.au.

Key Features & Technical Specifications

Real-World Scenarios

How It Compares

• Choose this if: You have existing coaxial cable infrastructure, need 5MP resolution with a motorised lens, and want Starlight Pro low-light performance in an IK10-rated vandal dome without migrating to an IP network.
• You may need a different model if: Your site runs on an IP network with PoE switches and an NVR - an IP dome or turret camera will integrate more cleanly and give you access to AI analytics capabilities not available in HDCVI cameras.
• Pairs well with: A compatible Dahua XVR with HDCVI 5MP support and coaxial PTZ control, which enables remote motorised lens adjustment from the recorder without a separate controller.

Common Questions

1. Will this camera work on my existing analogue DVR?

   It depends on your DVR's supported formats. This camera outputs HDCVI, CVBS, AHD, and TVI - switchable via a DIP switch on the cable. If your existing DVR supports any of these formats at the correct resolution, it will receive the video signal. However, to use the motorised lens adjustment remotely, your recorder must specifically support HDCVI coaxial PTZ control. A standard SD analogue DVR will display a basic video feed but will not be able to control the lens zoom or focus.

2. How does the motorised lens adjustment actually work - does it need a separate controller?

   No separate controller is needed. The motorised vari-focal lens is controlled via the HDCVI coaxial data channel, which runs back to the connected XVR over the same cable carrying the video signal. From the XVR's on-screen display menu, you can zoom in or out across the 2.7-13.5mm range and trigger auto-focus to confirm sharpness. This means lens adjustment is done from wherever the recorder is located - no access to the camera body is required after mounting. Confirm your XVR model supports HDCVI coaxial control before purchasing.

3. What is the optical zoom ratio on this motorised lens and what does it mean for coverage distance?

   The 2.7-13.5mm focal length represents a 5x optical zoom ratio. At 2.7mm the horizontal field of view is 113 degrees - suited to wide-area coverage of a large room or intersection. At 13.5mm the horizontal field of view narrows to 31.4 degrees, which is appropriate for tighter detail coverage of a specific zone such as a doorway or counter. The DORI data confirms that at 13.5mm the detection distance extends to 210 metres and identification distance reaches 21 metres, compared to 64 metres detection and 6.4 metres identification at 2.7mm. This makes the telephoto end of the zoom range useful for focused coverage of a narrow but deeper scene.

4. Does this camera work outdoors?

   Yes. The IP67 rating confirms full protection against dust ingress and sustained water immersion, making it suitable for outdoor installation. The IK10 vandal resistance rating and 4KV lightning protection add further suitability for exposed locations. The ±30% input voltage tolerance also compensates for power fluctuations common in outdoor electrical runs. Note that the 30m IR range is confirmed for complete darkness - in typical outdoor night conditions with some ambient light, the Starlight Pro sensor will maintain colour detail before IR activates.

5. Will this camera work with a Dahua IP NVR?

   No. This is an HDCVI analogue camera and outputs video over coaxial cable only - it has no network port and does not generate an IP stream. It must connect to an XVR (hybrid or HDCVI recorder) that accepts the HDCVI signal format. It cannot be added to an IP NVR or accessed directly over a LAN or the internet without an XVR in the chain. If your system is IP-based, Security Australia stocks a range of IP dome cameras that would be the appropriate product type for that infrastructure.

6. What does the 120dB true WDR rating mean compared to digital WDR on cheaper cameras?

   True WDR at 120dB uses multiple physical exposures captured simultaneously within a single frame - the sensor captures a short exposure for bright areas and a long exposure for dark areas, then combines them. This produces usable detail across the full scene. Digital WDR, found on lower-cost cameras, is a post-processing technique applied to a single exposure and is significantly less effective in high-contrast scenes. In practical terms, 120dB true WDR means this camera handles scenes such as a backlit entrance or a carpark boom gate where direct sunlight and deep shadow coexist in the same frame - a scenario that will produce blown highlights or crushed shadows on cameras using basic digital WDR.

Downloads & Resources

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