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PTZ Cameras › IPC6424SR-X25-VF-B
4MP 25X LightHunter Network PTZ Dome Camera IPC6424SR-X25-VF-B
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Uniview (UNV) · PTZ CameraLightHunter · 25X Series
4MP 25X LightHunter PTZ · Auto-Tracking

IPC6424SR-X25-VF-B

A classic single-sensor network PTZ dome that puts a 25× optical zoom, LightHunter low-light imaging and smart perimeter analytics on one pole — built to watch a factory fence or park boundary around the clock.

2688×1520 · main stream @30fpsF1.5–F3.8 · iris rangeAuto Tracking · human / non-motor / vehicleIP67 · IK10 · vandal-resistant housing-40~70°C · wide working temperaturePoE+ / DC 12V · IEEE 802.3at powering
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4 MPMain stream, 2688×1520 @30fps
25×Optical zoom, 4.8-120 mm
100 mSmart IR distance
120 dBWide dynamic range (WDR)

The IPC6424SR-X25-VF-B is a 4 MP network PTZ dome camera built around a 1/2.8" CMOS sensor and a 25× optical zoom lens (4.8-120 mm, F1.5-F3.8, 16× digital zoom) for long-range detail on a single moving lens. LightHunter low-light processing holds color down to 0.003 Lux (F1.5, AGC on), backed by 120 dB WDR and a Smart IR illuminator reaching 100 m for full day/night coverage. Onboard analytics cover auto tracking with human/vehicle/non-motor classification, smart intrusion prevention (cross line, intrusion, enter/leave area with false-alarm filtering) and people-flow/crowd-density counting, all inside an IP67, IK10 vandal-resistant housing rated -40 °C to 70 °C.

Is this the right camera for you?

Plain-language guide for buyers and installers — based only on what this camera actually does.

Industrial park & factory perimeterSmart intrusion prevention covers cross-line, intrusion, enter-area and leave-area detection with false-alarm filtering and human / non-motor vehicle / vehicle classification — built to watch a fence line instead of flooding the guard room with false alerts.
Factory gate & yard entranceAuto tracking locks onto a person, non-motor vehicle or vehicle crossing the gate and follows it automatically, while the 25× optical zoom (4.8-120 mm) pulls in close enough to read faces or plates from the guard post without repositioning the camera.
Low-light yards & storage areasLightHunter processing holds a usable color image down to 0.003 Lux (F1.5, AGC on); once it is fully dark, Smart IR reaches 100 m so a wide unlit yard is not left blind between dusk and sunrise.
Harsh outdoor pole mountsIP67 sealing, IK10 vandal resistance and a -40 °C to 70 °C operating range let this dome sit on an exposed perimeter pole through heat, dust storms and freezing winters without a protective enclosure.
People-flow at plant gatesPeople counting supports flow statistics and crowd-density monitoring across multiple zones, useful for shift-change headcounts at a factory gate or occupancy checks in a logistics yard.
Simplified perimeter cablingPoE+ (IEEE 802.3at) or DC 12 V power plus a 2/1 alarm I/O let a pole run on a single cable and still trigger gate barriers or strobe lights when an intrusion event fires — no separate power drop needed at every post.
Not the right pick if you need…
  • No built-in microphone or speaker — Built-in Mic and Built-in Speaker are both listed N/A. Two-way audio is supported, but only via an external mic/speaker wired to the 1-in/1-out audio I/O.
  • No Wi-Fi — the datasheet lists WIFI as N/A. Network connection is wired only, via a single 10 M/100 M RJ45 port.
  • Network interface is 10 M/100 M Fast Ethernet, not Gigabit — confirm bandwidth budget before running multiple high-bitrate streams over a shared switch uplink.
  • This is a classic single-sensor PTZ, not a panoramic-linkage unit — if you need simultaneous 360° overview plus zoom detail from one pole, choose a panoramic-linkage PTZ instead.

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Key Features

Complete list from the official datasheet.

High-quality image with 4 MP, 1/2.8" CMOS sensor — 2688×1520 @30fps in the main stream
Ultra 265, H.265, H.264, MJPEG video compression
25× optical zoom (4.8-120 mm, F1.5-F3.8), 16× digital zoom
Smart intrusion prevention with false-alarm filtering: cross line, intrusion, enter area, leave area detection, including human / non-motor vehicle / vehicle classification
Automatic selection of best snapshots; supports face detection in masked areas
People counting: supports people flow counting and crowd density monitoring for different statistical scenarios
LightHunter technology ensures ultra-high image quality in low-illumination environments
Smart IR, up to 100 m (328 ft) IR distance
DC 12 V ±25%, PoE+ (IEEE 802.3at) powering; Alarm I/O: 2/1, Audio I/O: 1/1
IP67 ingress protection, IK10 vandal resistant

Two Strengths in One Dome: Long-Range Zoom + Smart Analytics

What actually makes this a perimeter camera, not just a zoom camera.

LONG-RANGE ZOOM

25× optical zoom (4.8-120 mm, F1.5-F3.8) plus 16× digital zoom pulls in distant detail without losing the wide view when zoomed back out.

SMART ANALYTICS

Auto tracking, smart intrusion prevention and people counting run on the camera itself, turning raw video into perimeter alerts instead of footage someone has to watch live.

How far can it see? (DORI)

DORI (EN 62676-4) is the industry standard for what a camera can do at distance. Values shown are at full 25× telephoto (4.8-120 mm lens, 120 mm end); the wide end of the zoom gives shorter distances with a wider field of view.

Detectsomething is there
2475 m8120.1 ft
Observewhat is happening
990 m3248.0 ft
Recognizesomeone you know
495 m1624.0 ft
Identifybeyond doubt
247.5 m812.0 ft

How wide a view at each distance

Scene width covered at typical mounting distances — the number you need to work out how many cameras a wall, yard or aisle takes.

Distance52.2° wide2.7° tele
5 m16 ft4.9 m16.1 ft0.2 m0.8 ft
10 m33 ft9.8 m32.1 ft0.5 m1.6 ft
15 m49 ft14.7 m48.2 ft0.7 m2.4 ft
20 m66 ft19.6 m64.3 ft1.0 m3.1 ft
30 m98 ft29.4 m96.4 ft1.4 m4.7 ft

Calculated from the horizontal field of view in the specifications below: width = 2 × distance × tan(FOV ÷ 2). Lens distortion and mounting angle are not included.

Who uses it, where it goes and how to install it

Written for the IPC6424SR-X25-VF-B from its own datasheet: 4 MP (2688×1520), 25x optical zoom (4.8–120 mm), auto-tracking of people and vehicles, 100 m Smart IR, IP67 and IK10, PoE+ (max. 21 W).

Who it is for

  • Factories, yards and perimeters — Smart intrusion prevention raises the alarm and auto-tracking then follows the person or vehicle; at 120 mm a person is identifiable up to 247.5 m in good light.
  • Stations, plazas and plant gates — People counting with crowd-density monitoring, plus audio I/O 1/1 to an external speaker and alarm I/O 2/1 to trigger barriers or strobes.
  • Roads, intersections and expressways — 4 MP detail at long zoom, target classification for mixed traffic, and heatwave reduction that limits the shimmer of hot asphalt in long-range shots.
  • Exposed or vandal-prone poles — IP67 and IK10 housing, -40 °C to 70 °C working range and 6 kV surge protection, for sites that are hard to reach for service.

Where and how to install

  • Height and view — Mount high, typically 4–6 m on a pole or building corner, with nothing close in front of the dome, so it looks over vehicles, fences and people. The -VF-B datasheet does not list the pan and tilt ranges; ask us if the site needs the camera to look above the horizon.
  • A rigid mount for 25x zoom — The camera weighs 3.05 kg and at 120 mm the view is only 2.74° wide, so the slightest sway shows as shaking. Use a short, stiff wall bracket (TR-WE45-IN) or a pole bracket (TR-UP08-A-IN or the aluminium TR-UP08-B-IN) on a thick, guyed pole; the long arm TR-WE45-A-IN shakes more at full zoom.
  • Other mounts and the junction box — Corner: TR-UC08-A-IN or aluminium TR-UC08-B-IN. Ceiling: TR-CE45-IN, TR-UF45-A-IN, or pendant poles TR-SE45-IN (200) and TR-SE45-A-IN (500). Gooseneck: TR-WE45-B-IN. Put the cable joints in the TR-JB12-IN dome junction box.
  • Power and cable — Use a PoE+ (IEEE 802.3at) port or a 12 V DC 3 A supply; maximum draw is 21 W, more than an 802.3af port (15.4 W) can give. Keep copper runs within 100 m; for longer distances use fibre to a switch near the pole.
  • Lightning and earthing — Built-in surge protection is 6 kV. On a metal pole or a rooftop, add a surge protector on the network cable at both ends and bond the pole to earth; tall PTZ poles are the most common lightning victims on a site.
  • Keep the IR path clear — The 850 nm IR reflects off eaves, walls, branches or dirt on the dome and washes out the night image. Keep the dome clear of the wall, trim trees in the IR path and check every preset at night.

Wide or zoomed in: what you actually see

At 4.8 mm the IPC6424SR-X25-VF-B gives an overview about 9.8 m wide at 10 m. At 120 mm the view is about 2.4 m wide at 50 m and 4.8 m at 100 m, which puts roughly 1124 pixels on each metre of the scene at 50 m (2688 ÷ 2.4): one person or one vehicle fills the frame. DORI distances beyond 100 m need daylight or a lit scene, because the IR reaches 100 m.

Wide · 4.8 mmTele · 120 mm
Horizontal view angle52.20°2.74°
Width covered at 10 m9.8 m0.5 m
Width covered at 50 m49.0 m2.4 m
Width covered at 100 m98.0 m4.8 m
Identify a stranger's face up to11.9 m247.5 m
Recognize someone you know up to23.9 m495.0 m
See what a person is doing up to47.7 m990.0 m
Detect that something is there up to119.3 m2475.0 m
IR night distance100 m100 m
  • Set the home position near the wide end for situational awareness: at 50 m the 4.8 mm view still covers 49.0 m.
  • Save zoomed presets on gates, fence corners and roads: at 120 mm a person is identifiable up to 247.5 m in daylight.
  • At night, keep presets that matter within the 100 m IR range or light those areas.

Widths are calculated from the horizontal view angle (width = 2 × distance × tan(angle ÷ 2)); identify/recognize/detect distances are the manufacturer's DORI figures (EN 62676-4) from the datasheet.

Full Specifications

Complete official specifications from the manufacturer's datasheet (technical values in English).

Single-channel PTZ — all values below apply to the one lens/sensor.

Camera

ModelIPC6424SR-X25-VF-B
Sensor1/2.8" CMOS
Min. IlluminationColor: 0.003 Lux (F1.5, AGC ON), 0 Lux with IR
Day/NightIR-cut filter with auto switch (ICR)
ShutterAuto/Manual, 1 ~ 1/100000 s
WDR120 dB
S/N> 56 dB

Lens

Focal Length4.8 to 120 mm
Digital Zoom16X
Optical Zoom25X
IrisF1.5 to F3.8
Field of View (H)52.20° to 2.74°
Field of View (V)30.81° to 1.54°
Field of View (D)64.20° to 3.23°

DORI

DORI Distance (Lens)4.8 to 120 mm
DORI Distance (Detect)119.3 m to 2475.0 m (391.2 ft. to 8120.1 ft.)
DORI Distance (Observe)47.7 m to 990.0 m (156.5 ft. to 3248.0 ft.)
DORI Distance (Recognize)23.9 m to 495.0 m (78.2 ft. to 1624.0 ft.)
DORI Distance (Identify)11.9 m to 247.5 m (39.1 ft. to 812.0 ft.)

Video

Privacy Mask24 areas, up to 4 areas per scene
Video CompressionUltra 265, H.265, H.264, MJPEG
Frame RateMain Stream: 4 MP (2688×1520), max. 30 fps · Sub Stream: 1080P (1920×1080), max. 30 fps · Third Stream: D1 (720×576), max. 30 fps
Video Bit Rate128 Kbps to 16 Mbps
U-codeSupport
ROISupport
Video StreamTriple streams
OSDUp to 10 OSDs

Intelligent

Auto TrackingSupport, target filtering: human, non-motor vehicle and vehicle
Smart Intrusion PreventionCross line detection, intrusion detection, enter area detection, leave area detection (support false alarm filtering and the classification of human, non-motor vehicle and vehicle)
People CountingSupport people flow counting and crowd density monitoring
Exception DetectionObject removed, Object Left Behind

Image

White BalanceAuto, Outdoor, Fine tune, Sodium lamp, Locked, Auto2
Digital Noise Reduction2D/3D DNR
FlipNormal, Flip vertical, Flip horizontal, 180°
HLCSupport
BLCSupport
Smart IRSupport
DefogDigital defog
Heatwave ReductionSupport

Events

Basic DetectionMotion detection, Tampering alarm, Audio detection, Object removed, Object Left Behind
General FunctionWatermark, IP address filtering, Access policy, ARP protection, RTSP authentication, User authentication, Alarm input, Alarm output

Audio

Audio CompressionG.711U, G.711A
Audio Bitrate128 Kbps
Two-way AudioSupport
SuppressionSupport
Sampling Rate16KHZ

Storage

Edge StorageMicroSD, up to 512 GB
Network StorageANR, NAS (NFS)

Illuminator

IR On/Off ControlAuto/Manual
Wavelength850 nm
Illumination Distance (IR)100 m (328.1 ft.)

Network

ProtocolsSSH, IGMP, RTP, RTCP, SMTP, IPv4, IPv6, ICMP, ARP, TCP, UDP, DHCP, PPPoE, RTSP, RTMP, DNS, DDNS, NTP, FTP, UPnP, HTTP, HTTPS, 802.1x, SNMP, QoS, SSL/TLS
Compatible IntegrationONVIF (Profile S, Profile G, Profile T, Profile M), API, SDK
User/HostUp to 32 users. 3 user levels: administrator, common user and operator
SecurityTLS 1.3, Password Protection, Strong Password, HTTPS Encryption, Export Operation Logs, Basic and Digest Authentication for RTSP, Digest Authentication for HTTP, TLS 1.2, WSSE and Digest Authentication for ONVIF
ClientEZStation, UNV-Link, UNV-Link Pro
Web BrowserPlug-in required live view: IE 10+, Chrome 45+, Firefox 52+, Edge 79+

PTZ

Number of Presets1024
Preset Patrol16 patrols, up to 64 presets for each patrol
Route Patrol16 patrols, up to 32 actions for each patrol
Recorded Patrol16 patrols, up to 128 actions for each patrol
Patrol Stay Time15 s to 1800 s
Preset Image FreezeSupport
Home PositionSupport

Interface

Audio I/O1 Input: impedance 1 kΩ, amplitude 2.5 V [p-p], 1 Output: impedance 600 Ω, amplitude 2.5 V [p-p]
Alarm I/O2/1
Serial Port1 × RS485
Built-in MicN/A
Built-in SpeakerN/A
WIFIN/A
Network1 × RJ45 10 M/100 M Base-TX Ethernet
Video Output1 BNC (for debugging)

Certification

EMCCE-EMC (EN 55032: 2015+A1:2020, EN 61000-3-3: 2013+A1: 2019, EN IEC 61000-3-2: 2019+A1: 2021, EN 55035: 2017+A11:2020) · FCC (FCC CFR 47 part15 B, ANSI C63.4-2014)
SafetyCE LVD (EN 62368-1:2014+A11:2017) · UL (UL 62368-1, 2nd Ed., Issue Date: 2014-12-01)
EnvironmentCE-ROHS (2011/65/EU; (EU)2015/863)
ProtectionIP67 (IEC 60529:1989+AMD1:1999+AMD2:2013) · IK10 (IEC 62262:2002)

General

PowerDC 12 V (±25%, 3 A), PoE+ (IEEE 802.3at)
Power ConsumptionMax. 21 W
Power InterfaceØ5.5 mm coaxial power plug
DimensionsØ162 mm × 293 mm (Ø6.4" × 11.5") (Ø × H)
Weight3.05 kg (6.72 lb.)
Working Environment-40 ℃ to 70 ℃ (-40 ℉ to 158 ℉), Humidity: ≤ 95% RH (non-condensing)
Storage Environment-40 ℃ to 70 ℃ (-40 ℉ to 158 ℉), Humidity: ≤ 95% RH (non-condensing)
Surge Protection6 KV
Reset ButtonSupport
Web Client Language22 Languages: Traditional Chinese, English, Simplified Chinese, Polish, German, Russian, French, Korean, Dutch, Czech, Portuguese (Europe), Portuguese (Brazil), Japanese, Thai, Turkish, Spanish (Latin America), Spanish (Europe), Hungarian, Italian, Vietnamese, Arabic, Slovak
Configurable P/NSupport

Dimensions

Engineering drawing reproduced 1:1 from the official datasheet.

IPC6424SR-X25-VF-B dimensions
unit: mm (in.)
Dimensions (drawing)Ø165.7 mm × 315.7 mm (Ø6.5" × 12.4")
Weight3.05 kg (6.72 lb.)
PowerDC 12 V (±25%, 3 A) · PoE+ (IEEE 802.3at) · max. 21 W
Working Environment-40 °C to 70 °C (-40 °F to 158 °F), ≤95% RH non-condensing
ProtectionIP67 · IK10 · 6 kV surge

Optional Mounting Accessories

Order together with the camera to save shipping.

TR-UF45-A-INDome indoor ceiling mounting pedestal
TR-SE45-A-INDome ceiling mounting pole 500
TR-SE45-INDome ceiling mounting pole 200
TR-CE45-INDome indoor ceiling mounting bracket
TR-WE45-INDome wall mounting bracket
TR-WE45-A-INLong wall mounting bracket for dome
TR-WE45-B-INDome gooseneck bracket
TR-JB12-INDome junction box
TR-UP08-A-INDome pole mounting bracket
TR-UP08-B-IN / TR-UC08-A-IN / TR-UC08-B-INAluminium alloy pole & corner mounting brackets

4MP 25x PTZ Camera FAQ — IPC6424SR-X25-VF-B

How far can the IPC6424SR-X25-VF-B identify a person?
With the 4.8–120 mm lens (25x optical, 16x digital, F1.5–F3.8), DORI figures run: detect up to 2475 m, observe up to 990 m, recognize up to 495 m and identify up to 247.5 m at full zoom. One unit can watch a very long fence line or approach road.
What is its night vision like?
Per the listing it carries 100 m Smart IR for full darkness, and LightHunter color imaging holds to 0.003 lux (F1.5, AGC on) before IR is needed. Smart IR exposure control avoids overexposing close subjects; 120 dB WDR, digital defog and heatwave reduction keep the image usable.
Does it track people and vehicles automatically?
Yes. Auto tracking filters for humans, non-motor vehicles and vehicles, following the target as it moves through the scene. Smart intrusion prevention provides cross-line, intrusion, enter-area and leave-area detection with false-alarm filtering, and people flow counting plus crowd density monitoring are supported.
What streams does it output to the NVR?
Triple streams: 4 MP (2688×1520) at up to 30 fps on the main stream, 1080p on the sub stream and D1 on the third. Bit rate is adjustable from 128 Kbps to 16 Mbps across Ultra 265, H.265, H.264 and MJPEG, so you can balance image quality against disk and bandwidth.
Is the housing tough enough for exposed sites?
Per the listing the housing is rated IP67 against dust and water immersion and IK10 against impact — the common spec asked for on roadside poles, depots and coastal sites. It also has alarm input/output contacts, tampering alarm and two-way audio for on-site response.
How do I stop the IPC6424SR-X25-VF-B auto-tracking from chasing trees, shadows or the wrong target?
Turn on target filtering so it only follows the classes you care about (human, non-motor vehicle or vehicle), and start tracking from smart intrusion or cross line rules drawn only over the area that matters, not over a busy road or moving trees. It follows one target at a time and leaves its preset while doing so, so set a home position it returns to afterwards, and keep a fixed camera on the main entrance. A rigid mount also helps, because a swaying pole makes the scene itself look like it is moving.
What is the difference between the IPC6424SR-X25-VF-B and the IPC6424SR-X25-VF?
On paper they are the same camera: both datasheets list the 4 MP 1/2.8" sensor, 4.8–120 mm 25x lens, auto-tracking, 100 m IR, audio I/O 1/1, alarm I/O 2/1, max. 21 W, IP67/IK10 and the same brackets. The only visible difference is that the -VF-B datasheet leaves out the pan/tilt range and speed rows. Uniview sells them as separate order codes and the datasheets do not explain the suffix, so pick by availability, and tell us if your project specification names one of them.
IPC6424SR-X25-VF-B or the 2 MP IPC6422SR-X25-VF-B: what is the difference?
Same size housing, 25x zoom, 100 m IR, IP67/IK10, audio and alarm ports and 21 W maximum power. The IPC6424SR-X25-VF-B has 4 MP (2688×1520) at 30 fps, identifies a person up to 247.5 m and lists auto-tracking. The IPC6422SR-X25-VF-B has 2 MP at up to 60 fps, identifies up to 194.0 m, has slightly better low-light color (0.001 Lux vs 0.003 Lux) and does not list auto-tracking. Choose the 4 MP for detail and tracking, the 2 MP for fast traffic or lower storage.
How much bandwidth and storage does the IPC6424SR-X25-VF-B need?
The bit rate is adjustable from 128 Kbps to 16 Mbps. Assuming 8 Mbps continuous recording, one camera writes about 86.4 GB per day, so about 2.6 TB of NVR disk for 30 days, or about 5.9 days on the maximum 512 GB microSD card. Its port is 10/100 Mbps: fine for one camera, but 8 cameras at 16 Mbps add up to 128 Mbps, so use a gigabit uplink from the PoE switch to the NVR. Ultra 265 and event recording reduce both figures.
Will the IPC6424SR-X25-VF-B work with a Hikvision, Dahua or other third-party NVR?
Usually yes for live view, recording and PTZ control: it supports ONVIF Profile S, G, T and M plus RTSP. Auto-tracking runs inside the camera, so it works whatever the recorder; smart intrusion events reach a third-party system only if it supports them (Profile M helps with VMS software). Rule setup and people-counting statistics are done in the camera web page or on Uniview NVRs and the EZStation, UNV-Link and UNV-Link Pro clients. Tell us your NVR model and we will confirm before you order.
Can the IPC6424SR-X25-VF-B read license plates at a road checkpoint?
It can show a readable plate when a preset is zoomed onto one lane in daylight: at 120 mm the view is about 2.4 m wide at 50 m, roughly 1124 pixels per metre. But no plate-recognition (LPR/ANPR) function is listed, the camera cannot watch every lane at once, and at night reflective plates often flare under IR. For a checkpoint that must log every plate, use dedicated plate cameras per lane and this PTZ for overview and tracking.

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