HIKVISION - DS-2DF8425IXG1-ELWY - 4 MP, 25× Zoom, IP PTZ
Product Features
DS-2DF8425IXG1-ELWY: 4 MP PTZ camera with 25× optical zoom. Genuine UK stock from an authorised Hikvision partner, delivered within 1–3 working days.
DS-2DF8425IXG1-ELWY — 4 MP, 25× Zoom, IP PTZ
The DS-2DF8425IXG1-ELWY is a 4 MP IP PTZ speed dome with 25× optical zoom and IR to 400 m. It runs over network cable to an NVR.
It pans 360° and tilts -20° to 90° (auto flip), holds 300 presets and supports patrol and pattern scans, so it can run a tour unattended.
Technical specification
| Resolution | 2688 × 1520 |
| Image sensor | 1/1.8" progressive scan CMOS |
| Optical zoom | 25× optical, 16× digital |
| Focal length | 5.9 mm to 147.5 mm, 25 × Optical |
| Field of view | Horizontal field of view: 59.8° to 3.3° (wide-tele), Vertical field of view: 33.7° to 1.9° (wide-tele), Diagonal field of view: 65° to 3.8° (wide-tele) |
| Aperture | Max. F1.5 |
| Minimum illumination | Color: 0.0005 Lux @ (F1.5, AGC ON), B/W: 0.0001 Lux @ (F1.5, AGC ON), 0 Lux with IR |
| Wide dynamic range | 150 dB WDR |
| Supplement light | IR Distance: up to 400 m |
| Pan range | 360° |
| Tilt range | -20° to 90° (auto flip) |
| Pan speed | Pan speed: configurable from 0.1° to 210°/s; preset speed: 280°/s |
| Tilt speed | Tilt speed: configurable from 0.1° to 150°/s, preset speed 250°/s |
| Presets | 300 |
| Patrol / pattern | 8 patrols, up to 32 presets for each patrol; 4 pattern scans, record time over 10 minutes for each scan |
| Smart tracking | Manual tracking, auto-tracking 3.0 |
| Video compression | Main stream: H.265+/H.265/H.264+/H.264 Sub-stream: H.265/H.264/MJPEG Third stream: H.265/H.264/MJPEG |
| Video output | 1.0Vp-p: /75Ω, PAL, NTSC, BNC connector |
| Network | 1 RJ45 10M/100M self-adaptive Ethernet port |
| On-board storage | Built-in memory card slot, support MicroSD/MicroSDHC/MicroSDXC, up to 1 TB |
| Audio | 1 input (line in), max. input amplitude: 2-2.4 vpp, input impedance: 1 KΩ ± 10%; 1 output (line out), line level, output impedance: 600 Ω |
| Alarm | 7 inputs, 2 outputs |
| RS-485 | HIKVISION, Pelco-P, Pelco-D, self-adaptive |
| Power | 36 VDC (Max. 40 W, including max. 18 W for IR and max. 6 W for heater), Hi-PoE (Max. 40 W, including max. 18 W for IR and max. 6 W for heater) |
| Dimensions | ⌀ 266 mm × 410 mm (⌀ 10.47" × 16.14") |
| Weight | Approx. 8 kg (17.64 lb.) |
| Operating conditions | Temperature: -40°C to 70°C (-40°F to 158°F), Humidity: ≤ 95% |
| Protection | IP67 Standard, Lightning Protection, Surge Protection and Voltage Transient Protection, ±6kV Line to Gnd, ±3kV Line to Line, IEC61000-4-5, IK10 |
Specification taken from Hikvision's published data for this model. Appearance and parameters may vary; ask us if a particular figure matters for your project.
What you'll need
- An NVR with a spare channel: see NVRs
- PoE with headroom, or the supply listed in the table: see PoE switches
- A bracket rated for the weight (this is a heavy unit): see CCTV accessories
- Compare the range in our Hikvision PTZ camera guide, or browse all PTZ IP cameras
Frequently asked questions
How much zoom do I need?
This model has 25× optical zoom. As a rule of thumb, 4× suits a forecourt, 15–25× a car park or yard, and 32× or more a long boundary. Digital zoom is not a substitute — it only enlarges pixels.
How far does it see at night?
Hikvision quotes IR to 400 m. That is the illumination range, not the identification range — at 400 m you will see that something is there, not who it is.
Will standard PoE power it?
No. It needs 36 VDC or Hi-PoE at up to 40 W (including 18 W for the IR and 6 W for the heater). A standard 802.3af switch will not run it, and an undersized supply is the usual reason a PTZ resets when it moves.
Can it follow someone automatically?
Yes. Hikvision lists manual tracking and auto-tracking 3.0 for this model, so it will lock on to a moving person or vehicle and follow it.
Do I still need fixed cameras?
On most sites, yes. A PTZ looks in one direction at a time, so fixed cameras on the entrances give you the constant evidence while the PTZ investigates.
Supplied by Zenith Security Co., an authorised Hikvision partner with a trade counter and live showroom in Wolverhampton. We are a supplier, not an installer: we go through the product with you before you buy, and depending on your requirements and area we may be able to recommend a qualified trade installer. Call 01902 902251 or contact us; installers can open a trade account for trade pricing. Compare the range in our Hikvision PTZ camera guide or browse all Hikvision products.
| Product Code | DS-2DF8425IXG1-ELWY |
|---|---|
| Manufacturer | Hikvision |
| Colour | White |
| Max Resolution | 4MP |
| Max. IR Range | Up to 250 m |
| Indoor/Outdoor | Indoor / Outdoor |
TECHNICAL SUPPORT
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3 YEAR WARRANTY
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