DS-2DE4425IWG1-E

Manufacturer reference

Manufacturer details describe the cited version. Confirm the exact unit and intended system.

Product reference

Device class

4 MP 25X Powered by DarkFighter IR Acusense Network Speed Dome

Image and lens

Image sensor

1/2.8-inch progressive-scan CMOS as listed; confirm the supplied camera.

Maximum resolution

2560 × 1440 as listed. Frame rate depends on the selected stream and frequency setting.

Minimum illumination

Colour: 0.005 lux at F1.6 with AGC ON; B/W: 0.001 lux at F1.6 with AGC ON, or 0 lux with IR as listed. The zero-lux condition requires infrared illumination; it is not full-colour imaging without light.

Exposure and day/night

Shutter 1 s to 1/30,000 s, IR-cut filter and slow-shutter support are listed. Confirm motion blur, lighting and day/night configuration.

Zoom and focal length

25× optical and 16× digital zoom; focal length 4.8 mm to 120 mm as listed. Digital zoom does not add optical detail.

Field of view

Wide-to-tele: horizontal 55° to 2.4°, vertical 33° to 1.4°, diagonal 61.5° to 2.8° as listed. Select the lens position for the intended scene.

Focus and zoom speed

Auto, semi-auto and manual focus; maximum aperture F1.6; approximate zoom speed 3.6 s as listed. Confirm behaviour with the supplied hardware and scene.

Infrared reference

IR supplementary light with distance up to 100 m as listed. Actual coverage depends on scene, target and illumination settings; this is not a guaranteed identification distance.

DORI reference

At detect/observe/recognise/identify criteria of 25/63/125/250 px/m respectively, tele: 2402.4 m (7881.9 ft), 953.3 m (3127.7 ft), 480.5 m (1576.4 ft), 240.2 m (788.2 ft); wide: 96.1 m (315.3 ft), 38.1 m (125.1 ft), 19.2 m (63.1 ft), 9.6 m (31.5 ft). These manufacturer calculations use EN 62676-4:2015; actual detection or identification is not guaranteed.

PTZ and video

Pan and tilt movement

Pan 360°; tilt -15° to 90° with auto flip as listed. Confirm mounting clearance and the view required.

Pan and tilt speeds

Pan configurable from 0.1°/s to 80°/s, preset 80°/s; tilt configurable from 0.1°/s to 80°/s, preset 80°/s as listed. Confirm actual control settings.

Preset and patrol limits

300 presets; 8 patrols with up to 32 presets per patrol; 4 pattern scans as listed. These are separate limits, not a combined camera count.

PTZ control features

Proportional pan, preset freezing, 3D positioning, PTZ status display and power-off memory are listed. Confirm control and restart behaviour with the selected system.

Park and scheduled actions

Park: preset, pattern scan, patrol scan, auto scan, tilt scan, random scan, frame scan or panorama scan. Scheduled tasks list the same scan actions plus dome reboot, dome adjust and auxiliary output. Configure and test each action.

Main stream

50 Hz: 25 fps at 2560 × 1440, 1920 × 1080, 1280 × 960 or 1280 × 720; 60 Hz: 30 fps at 2560 × 1440, 1920 × 1080, 1280 × 960 or 1280 × 720 as listed. Select a supported mode; do not sum the branches.

Sub-stream

50 Hz: 25 fps at 704 × 576, 640 × 480 or 352 × 288; 60 Hz: 30 fps at 704 × 480, 640 × 480 or 352 × 240 as listed. Confirm the selected output mode.

Third stream

50 Hz: 25 fps at 1920 × 1080, 1280 × 960, 1280 × 720, 704 × 576, 640 × 480 or 352 × 288; 60 Hz: 30 fps at 1920 × 1080, 1280 × 960, 1280 × 720, 704 × 480, 640 × 480 or 352 × 240 as listed. Confirm the selected output mode.

Video encoding

Main: H.265+/H.265/H.264+/H.264. Sub and third streams: H.265/H.264/MJPEG. Video bitrate 32 to 16384 kbps; H.264 Baseline/Main/High profile and H.265 Main profile are listed. Confirm recorder decoding and bandwidth.

ROI and scalable coding

8 fixed ROI regions per stream, with scalable video coding for H.264 and H.265 as listed. Confirm stream and encoder configuration.

Audio and interfaces

Audio encoding

G.711, G.722.1, G.726, MP2L2, PCM, MP3 and AAC-LC are listed. Rates: G.711 64 kbps; G.722.1 16 kbps; G.726 16 kbps; MP2L2 32-192 kbps; AAC-LC 16-64 kbps; MP3 8-320 kbps. The bitrate row gives no PCM rate; do not infer one.

Audio sampling rates

MP2L2: 16/32/48 kHz; AAC-LC: 16/32/48 kHz; PCM: 16/32/48 kHz; MP3: 8/16/32/48 kHz as listed. These are codec-specific choices, not every rate for every codec.

Built-in audio

2 built-in microphones in an arrayed dual-microphone arrangement, up to 8 m, and 1 built-in speaker with effective distance reaching a maximum of 20 m are listed. Environmental-noise filtering is listed. Actual pickup and audibility depend on noise, placement and settings.

Audio connections

1 line input, maximum amplitude 2-2.4 Vpp, input impedance 1 kΩ ±10%; 1 line output at line level, output impedance 600 Ω as listed. Confirm electrical matching; the output is not a powered speaker connection.

Alarm and reset

1 alarm input, 1 alarm output and reset support as listed. Confirm wiring and configuration separately.

Ethernet interface

1 RJ45 10 M/100 M self-adaptive Ethernet port as listed. Do not infer a gigabit port.

Network and image settings

Network integration

ONVIF Profile S, Profile G and Profile T, ISAPI, SDK and ISUP are listed. Confirm device firmware and recorder interoperability; listing an interface is not universal compatibility approval.

Live view and users

Up to 20 simultaneous live-view channels; up to 32 users with administrator, operator and user levels as listed. User accounts and live-view channels are different limits.

Network storage

NAS using NFS or SMB/CIFS and automatic network replenishment (ANR) are listed. Confirm NAS configuration and recorder/network support; no network storage service is supplied by this page.

On-board storage

Built-in microSD/microSDHC/microSDXC card slot, up to 512 GB as listed. Confirm compatible card and recording configuration; no card is assumed included.

WDR and image enhancement

120 dB WDR; digital defog; EIS; BLC, HLC and 3D DNR; regional focus and regional exposure are listed. Confirm scene and image settings; do not treat these as guaranteed image-quality results.

Privacy and panorama

24 programmable polygon privacy masks with configurable colour or mosaic, and a 360° real-scene stitched panoramic image view are listed. A stitched panorama is not a simultaneous optical fisheye image.

Events and analytics

Basic and smart events

Basic: motion detection, video tampering alarm, exception, alarm input/output. Smart: line crossing, intrusion, region entrance/exit, unattended baggage, object removal and audio exception detection as listed. Confirm supported event configuration and scene.

Event linkage

FTP/NAS/memory-card upload, surveillance-centre notification, email, alarm output, recording, audible warning, white-light flashing and PTZ preset/patrol/pattern actions are listed. Configure and test destinations; this is not evidence that any message has been sent.

Face capture

Up to 5 faces simultaneously, with detection, capture, grading, selection of faces in motion and output of the best face picture as listed. Capture is not identity recognition; confirm actual scene and privacy requirements.

Regional people counting

Up to 8 detection regions with independent arming schedule and linkage. Listed modes: people-density detection, number-of-people exception and waiting-time exception; real-time people-number search is listed. Confirm scene and configuration.

Tracking reference

Manual tracking and auto-tracking are listed for this exact source model. Confirm supplied hardware, firmware and configuration; this is not a tracking-accuracy guarantee.

Power and physical

Power reference

12 V DC, maximum 18 W including up to 1.6 W for the heater and 9 W for IR; or PoE 802.3at as listed. These are separate supply modes, not loads to add together. Confirm supply sizing; no injector or adapter is assumed included.

Dimensions and weight

Diameter 164.5 mm × 290 mm (6.48 in × 11.42 in); approximately 2 kg (4.41 lb.) as listed. Confirm mounting clearance, load and supplied configuration; inch values are source-rounded references.

Material and demist

ADC12 material and demist support are listed. Confirm the supplied housing and site conditions; this is not a corrosion rating.

Operating conditions

-30 °C to 65 °C (-22 °F to 149 °F), humidity 90% or less, non-condensing as listed. Confirm installation and site conditions.

Protection reference

IP67 under IEC 60529-2013; TVS 6000 V lightning protection, surge protection and voltage-transient protection are listed. Correct sealing, earthing and surge design remain necessary; this is not direct-lightning immunity.

Mounting references

Document packing reference

The manufacturer document lists DS-1618ZJ under Included. This is not confirmation of the ISD supplied package; confirm the actual bracket and box contents before ordering.

Optional accessories

Optional references: DS-1604ZJ-BOX-POLE, DS-1673ZJ, DS-1684ZJ, DS-1661ZJ, DS-1604ZJ-pole, DS-1663ZJ, DS-1662ZJ, DS-1602ZJ-R/B, DS-1619ZJ, DS-1604ZJ-BOX-CORNER, DS-1661ZJ-R/B and DS-1604ZJ-box. Confirm exact fit and required parts with ISD; not included by default.

Optional mounting combinations

Optional examples: wall DS-1618ZJ or DS-1604ZJ-box; vertical pole DS-1604ZJ-BOX-POLE, DS-1684ZJ + DS-1602ZJ or DS-1604ZJ-pole; horizontal pole DS-1673ZJ + DS-1662ZJ; pendant DS-1661ZJ, DS-1663ZJ or DS-1662ZJ; gooseneck DS-1619ZJ; corner DS-1604ZJ-BOX-CORNER. Confirm complete assemblies, load and sealing; not included by default and not an ISD installation service.

Selection notes

• This reference describes DS-2DE4425IWG1-E only. Confirm the exact supplied hardware, firmware, recorder, lighting, power and mounting with ISD; other printed ordering suffixes are not treated as interchangeable.
• Confirm the complete model, stock, price, ETA, supplied package and local warranty with ISD. Manufacturer references do not establish availability or technical approval.
• ISD supplies products only. Installation, recorder interoperability, network setup, power supply and mounting parts require separate confirmation.
• Detection, tracking and DORI references depend on the scene and configuration. They do not establish recognition accuracy, a guaranteed detection distance or permission to process personal data.

Official documents

• Hikvision DS-2DE4425IWG1-E official English datasheet (20260317 filename)

Manufacturer source checked 2026-10-18. The supplied unit and local terms require confirmation.