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Order now for delivery Tuesday 27 October on orders over £300 mainland UK

Dahua

Dahua DH-SDT4E425-8P-GB-A-PV1 – 8MP & 4MP 25x TiOC Network Panoramic PTZ Camera

SKU DH-SDT4E425-8P-GB-A-PV1

In stock

£587.08 ex VAT

£704.50 inc VAT

DH-SDT4E425-8P-GB-APV1: 8+4MP 25x TiOC Network Panoramic PTZ Camera

The Dahua DH-SDT4E425-8P-GB-APV1 is a versatile panoramic PTZ camera that combines 8MP panoramic overview and 4MP detail channels to deliver comprehensive surveillance. With 25x optical zoom, smart tracking, and active deterrence features, it ensures precise monitoring and effective threat deterrence. Designed for challenging environments, this camera offers exceptional low-light performance and robust protection against harsh conditions.

*Includes PFB305W Wall Mount Bracket

Key Features:

  • Overview and Detail Channels:

    • Overview Channel: 8MP resolution (4096 × 1860) with a 180° wide-angle view.
    • Detail Channel: 4MP resolution (2560 × 1440) with 25x optical zoom for close-up details.
  • Starlight Technology: Captures clear images in low-light conditions, with minimum illumination of 0.005 lux (Color) and 0.0005 lux (B/W).

  • Smart Dual Light: Automatically switches between IR (up to 100m) and warm light (up to 50m) based on target detection, reducing light pollution. 

    • Overview Channel: 30m IR & 30m White Light
    • Detail Channel: 100m IR & 50m White Light
  • Active Deterrence: Features built-in red and blue light alarms, customizable voice warnings, and a speaker to deter intruders.

  • AI Functions: Includes perimeter protection, smart tracking, and auto-tracking 3.0 for accurate human and vehicle classification.

  • Smart Codec: Supports advanced compression technologies (Smart H.265+ and Smart H.264+) to reduce storage and bandwidth requirements.

  • Robust Design: IP66-rated for water and dust resistance, with an operating temperature range of -40°C to +65°C.

  • Flexible Power Options: Supports 12VDC/3A or PoE+, with a maximum power consumption of 25W.

  • Smart Storage: Supports microSD cards up to 512GB, FTP, and NAS for flexible storage solutions.

Compatible mounts and junction boxes

Listed by the manufacturer for this camera. Added at the same quantity as the camera.

Order now for delivery Tuesday 27 October on orders over £300

  • Free next working day delivery to mainland UK on orders over £300 inc VAT placed by 11am, Monday to Friday
  • Orders under £300 inc VAT: £9.99 delivery in 2 to 3 working days.
  • 14 day returns on unused items
  • VAT invoice with every order

Installer or electrician? Apply for a trade account

Key specifications

Image Sensor
Overview channel: 1/2.7" CMOS; Detail channel: 1/2.8" CMOS
Pixel
Overview channel: 8 MP; Detail channel: 4 MP
Max. Resolution
Overview channel: 4096 (H) × 1860 (V); Detail channel: 2560 (H) × 1440 (V)
ROM
Overview channel: 4 GB; Detail channel: 4 GB
RAM
Overview channel: 2 GB; Detail channel: 1 GB
Electronic Shutter Speed
1 s–1/30,000 s
Scanning System
Progressive
Min. Illumination
Overview channel: 0.005 lux@F1.4 (Color, 30 IRE); 0.0005 lux@F1.4 (B/W, 30 IRE); 0 lux (illuminator on) Detail channel: 0.005 lux@F1.6 (Color, 30 IRE); 0.0005 lux@F1.6 (B/W, 30 IRE); 0 lux (illuminator on)
Full specification

Description

The Guide To Choosing a PTZ (2026)

A PTZ stands for Pan, Tilt, Zoom. It means the camera can move left, right, up, down, and zoom in on a target. They are an ideal choice when monitoring multiple points at once is necessary. You can set presets to quickly monitor different scenes, or set up tours to automatically monitor at set intervals.

Read our blog to find out more on the PTZ features.

How to set up AutoTracking on 4 Series PTZs

Technical Specifications

Image Sensor Overview channel: 1/2.7″ CMOS; Detail channel:
1/2.8″ CMOS
Pixel Overview channel: 8 MP; Detail channel: 4 MP
Max. Resolution Overview channel: 4096 (H) × 1860 (V); Detail
channel: 2560 (H) × 1440 (V)
ROM Overview channel: 4 GB; Detail channel: 4 GB
RAM Overview channel: 2 GB; Detail channel: 1 GB
Electronic Shutter Speed 1 s–1/30,000 s
Scanning System Progressive
Min. Illumination Overview channel:
0.005 lux@F1.4 (Color, 30 IRE);
0.0005 lux@F1.4 (B/W, 30 IRE);
0 lux (illuminator on)
Detail channel:
0.005 lux@F1.6 (Color, 30 IRE);
0.0005 lux@F1.6 (B/W, 30 IRE);
0 lux (illuminator on)
Illumination Distance Overview channel: 30 m (98.43 ft) (IR); 30 m (98.43 ft)
(white light); Detail channel: 100 m (328.08 ft) (IR); 50
m (131.23 ft) (white light)
Illuminator On/Off Control Overview channel:
Manual; Auto; Off
Detail channel:
Zoom Prio; Manual; Auto; Off
Illuminator Number Overview channel: 2 (IR light); 2 (White light); Detail
channel: 2 (IR light); 2 (Warm light)
Focal Length Overview channel: 2.8 mm; Detail channel: 5 mm–125
mm
Max. Aperture Overview channel: F1.4; Detail channel: F1.6-F3.6
Field of View Overview channel: H: 180°; V: 86°; Detail channel: H:
51.9°–3.0°; V: 39.7°–2.2°; D: 63.1°–3.7°
Optical Zoom Overview channel: NA; Detail channel: 25×
Focus Control Auto; manual; semi-auto
Close Focus Distance Overview channel: 0.6 m (1.97 ft); Detail channel: 0.1
m–0.5 m (0.33″–1.64″)
Iris Control Overview channel: NA; Detail channel: Auto; manual;
iris prio
DORI
Distance
Detect
Overview
channel:
2.8 mm
56.0 m
(183.72 ft)
Detail channel:
W
100.0 m
(328.08 ft)
Detail channel:
T
2500.0 m
(8202.00 ft)
Pan/Tilt Range Pan: 0° to 360° endless
Tilt: –15° to +90°, auto flip 180°
Manual Control Speed Pan: 0.1°/s–180°/s;
Tilt: 0.1°/s–90°/s
Preset Speed Pan: 0.1°/s–180°/s;
Tilt: 0.1°/s–90°/s
Preset 300
Tour 8 (up to 32 presets per tour)
Pattern 5
Scan 5
Power-off Memory Yes
Idle Motion Preset; Pattern; Tour; Scan
IVS (Perimeter Protection) Tripwire; intrusion; crossing fence detection; loitering
detection; abandoned/missing object; fast moving;
parking detection; people gathering; human alarm
classification; linkage tracking
SMD SMD 4.0
Light Warning Red-Blue light warning;
Flash duration: 5 s–30 s;
Flash frequency: high, medium, low
Sound Warning Offers 11 sound alarm and 10 custom sound alarms
can be imported.
Sound can be set from 0%–100%.
Play times can be set from 1-10.
Video Compression Smart H.265+;H.265;Smart H.264+;H.264B;H.264M;H.
264H;MJPEG(Sub Stream 1)
Streaming Capability 3 streams
Resolution Overview channel: 8M (4096 × 1860); 2M (2048 ×
928); 1080p (1920 × 1080); 720p (1280 × 720); 1024
× 448; D1 (704 × 576/704 × 480);VGA (640 × 480);CIF
(352 × 288/352 × 240); Detail channel: 4M (2560 ×
1440); 3M (2304 × 1296); 1080p (1920 × 1080); 1.3M
(1280 × 960); 720p (1280 × 720); D1 (704 × 576/704 ×
480);VGA (640 × 480); CIF (352 × 288/352 × 240)
Video Frame Rate Overview channel:
Main stream: 4096 × 1860 @(1–25/30 fps)
Sub stream 1: 1024 × 448/D1/VGA/CIF @(1–25/30 fps)
Sub stream 2: 2048 × 928/1080p/1.3M/720p @
(1–25/30 fps);
Detail channel:
Main stream: 4M/3M/1080p/1.3M/720p @(1–25/30
fps)
Sub stream 1: D1/VGA/CIF @(1–25/30 fps)
Sub stream 2: 1080p/1.3M/720p/ @(1–25/30 fps)
Bit Rate Control CBR/VBR
Video Bit Rate Overview channel:
H264: 128 kbps–16,384 kbps
H265: 51 kbps–13,312 kbps;
Detail channel:
H264: 96 kbps–16,384 kbps
H265: 38 kbps–10,240 kbps
Day/Night Overview channel: Auto; Color; B/W; Electronic
Detail channel: Auto; Color; B/W; Electronic
BLC Yes
WDR Overview channel: DWDR; Detail channel: 120 dB
HLC Yes
White Balance Overview channel: Auto; indoor; outdoor; tracking;
manual; sodium lamp; natural light; street lamp
Detail channel: Auto; indoor; outdoor; tracking;
manual; sodium lamp; natural light; street lamp
Gain Control Overview channel: Auto; manual; gain prio
Detail channel: Auto; manual; gain prio
Noise Reduction Overview channel: 2D NR; 3D NR
Detail channel: Auto: 2D NR; 3D NR
Motion Detection Yes
Region of Interest (RoI) Yes
Image Stabilization Overview channel: NA
Detail channel: Electronic Image Stabilization (EIS)
Defog Overview channel: Electronic
Detail channel: Electronic
Digital Zoom Overview channel: NA;
Detail channel: 16×
Image Rotation Overview channel: NA
Detail channel: 180
S/N Ratio Overview channel: ≥55 dB
Detail channel: ≥55 dB
Audio Compression PCM, G.711A, G.711Mu, G.726, MPEG2-Layer2,
G.722.1, G.729
Network Port RJ-45 (100/1,000 Base-T)
Network Protocol HTTP; HTTPS; TCP/IP; IPv4; RTSP; UDP; SMTP; NTP;
DHCP; DNS; DDNS; IPv6; 802.1x; SSL; QoS; FTP; UPnP;
ICMP; SNMP; IGMP; ARP; RTCP; RTP; PPPoE; RTMP;
Bonjour; NFS
Interoperability ONVIF (Profile S & Profile G & Profile T);CGI;SDK;P2P
Streaming Method Unicast/Multicast
User/Host 20 (total bandwidth: 64 M)
Storage Micro SD card (512 GB); FTP/SFTP; NAS
Browser web5.0:
IE 9 and later versions;
Chrome 41 and later versions;
Firefox 52 and later versions;
Safari 10 and later versions
Management Software DMSS; DSS Pro
Mobile Client iOS; Android
Management Software DMSS; DSS Pro
Mobile Client iOS; Android
Certifications CE: EN 50130-4
EN 55032
EN 55035
EN 61000-3-3
EN IEC 61000-3-2
EN 62368-1
Audio Input 1 channel (LINE IN, bare wire)
Audio Output 1 channel (LINE OUT,bare wire;built-in speaker
(mutually exclusive))
Alarm Input 2 (on-off value input: 0–5 VDC)
Alarm Output 1 channel
Alarm Linkage Capture; recording; send email; preset; tour; pattern;
alarm digital output; audio; warning light
Alarm Event Motion/tampering detection; network disconnection
detection; IP conflict detection; memory card state
detection; memory space detection
Alarm Event Motion/tampering detection; audio detection;
network disconnection detection; IP conflict
detection; memory card state detection; memory
space detection
Power Supply 12 VDC, 3 A ± 10%;PoE (802.3at)
Power Consumption Basic: 14 W;
Max: 25 W (illuminator + heating glass + Siren and
Light Active Deterrence + ICR + PTZ)
Power Adapter Optional
Operating Temperature –40 °C to +65 °C (–40 °F to +149 °F)
Operating Humidity ≤95%

Additional information

Brand

Dahua

Colour

White

Technology

IP (network)

Resolution

8MP (4K)

Night vision

Dual light (IR + colour)

Night vision range

Up to 100m

Optical zoom

Up to 25x

Features

Active deterrence (light & siren), Auto-tracking, Two-way audio

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