DH-SDT4E425-4F-GB-A-PV1 details_h2_image1

By Dahua

Dahua DH-SDT4E425-4F-GB-A-PV1 Auto Tracking 4MP+4MP 25x TiOC WizSense PTZ Camera

15 in stock

SKU: DH-SDT4E425-4F-GB-A-PV1

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Dual 4MP sensors — bullet channel captures wide area, PTZ channel zooms in on details simultaneously
25x optical zoom (5–125 mm) with Auto Tracking 3.0 — follows intruders and records their full trajectory
Active Deterrence (TiOC) — triggers audible siren and flashing strobe light to drive away threats
120 dB True WDR — delivers clear images even in strong backlight or high-contrast scenes
Built-in microphone and speaker — real-time audio monitoring and two-way talk without extra hardware
360° endless pan, 90° tilt, 200°/s pan speed — covers large areas with zero blind spots
IP66 weatherproof with TVS 6000V surge protection — reliable operation in rain, dust, and lightning

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Dahua DH-SDT4E425-4F-GB-A-PV1 Auto Tracking 4MP+4MP 25x TiOC WizSense PTZ Camera

America – Change

Dahua X-Spans 4MP+4MP 25x TiOC WizSense PTZ Camera

See Wide, Zoom Close — Dual 4MP Channels

This X-Spans PTZ camera uses two independent 4MP sensors. The bullet channel gives you a broad overview of the scene, while the PTZ channel delivers 25x optical zoom to capture critical details like license plates or facial features. Both channels stream at 2560×1440 resolution, so you never sacrifice clarity for coverage.

Auto Tracking 3.0 — Never Lose a Target

Once the camera detects a human or vehicle, Auto Tracking 3.0 locks on and follows the intruder automatically. It records the full movement trajectory, giving you a complete record of where the person went and what they did. Combined with SMD4.0 filtering, false alarms from animals or leaves are virtually eliminated.

Active Deterrence — Stop Threats Before They Act

When an intrusion is detected, the TiOC system triggers a bright strobe light and a loud audible alarm. This active deterrence often scares off trespassers before any damage occurs. You can also use the built-in microphone and speaker to issue a verbal warning in real time — no extra hardware needed.

Built Tough for Outdoor Installations

Rated IP66 and protected against surges up to 6000V, this PTZ camera handles rain, dust, lightning, and voltage spikes without issue. It operates in temperatures from -40°C to +65°C, making it suitable for parking lots, warehouses, and perimeter fencing. Power via 12V DC or PoE+ (802.3at) for flexible installation.

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Specification

Camera

Image Sensor	Panorama: 1/2.8" CMOS; Detail: 1/2.8" CMOS
Pixel	Panorama: 4 MP; Detail: 4 MP
Max. Resolution	Panorama: 2560 (H) × 1440 (V); Detail: 2560 (H) × 1440 (V)
ROM	Panorama: 4 GB; Detail: 4 GB
RAM	Panorama: 1 GB; Detail: 1 GB
Electronic Shutter Speed	Panorama: 1/3s-1/100000s; Detail: 1s-1/30000s
Scanning System	Progressive
Min. Illumination	Panorama: 0.001 lux@F1.0 (Color, 30 IRE); 0.0005 lux@F1.0 (B/W, 30 IRE); 0 lux (illuminator on); Detail: 0.005 lux@F1.6 (Color, 30 IRE); 0.0005 lux@F1.6 (B/W, 30 IRE); 0 lux (illuminator on)
Illumination Distance	Panorama: 30 m (98.43 ft) (IR); 30 m (98.43 ft) (white light); Detail: 100 m (328.08 ft) (IR) 50 m (164.04 ft) (white light)
Illuminator On/Off Control	Panorama: Auto; Manual; Off; Detail: Zoom Prio; Auto; Manual; Off
Illuminator Number	Panorama: 2 (IR); 2 (white light); Detail: 2 (IR); 2 (dual light Fusion)

Lens

Focal Length	Panorama: 2.8 mm; Detail: 5 mm–125 mm
Max. Aperture	Panorama: F1.0; Detail: F1.6–F3.6
Field of View	Panorama: H: 101°; V: 53°; D: 120°; Detail: H: 51.9°–3.0°; V: 39.7°–2.2°; D: 63.1°–3.7°
Optical Zoom	Panorama: NA; Detail: 25×
Focus Control	Auto; semi-auto; manual
Close Focus Distance	Panorama: 0.2 m (0.66 ft); Detail: 0.1 m–0.5 m (0.33 ft–1.64 ft)
Iris Control	Auto; manual

DORI

Detect	2500 m (8202.10 ft)
Observe	987.5 m (3239.83 ft)
Recognize	500 m (1640.42 ft)
Identify	250 m (820.21 ft)

PTZ

Pan/Tilt Range	Panorama camera: Tilt: 13° to 23°; Detail camera: Pan: 0° to 360° endless; Tilt: –15° to 90°, auto flip 180°
Manual Control Speed	Pan: 0.1°/s–200°/s; Tilt: 0.1°/s–120°/s
Preset Speed	Pan: 240°/s; Tilt: 200°/s
Preset	300
Tour	8 (up to 32 presets per tour)
Pattern	5
Scan	5
Power-off Memory	Yes
Idle Motion	Pattern; Preset; Scan; Tour

Intelligence

IVS (Perimeter Protection)	Tripwire; intrusion; climbing fences; loitering detection; abandoned/missing object; fast moving; parking detection; people gathering; vehicle/human alarm classification; linking the detail camera to track objects
Auto Tracking	Yes
SMD	SMD4.0
Quick Pick	Yes

Active Deterrence

Light Warning	Red-blue light warning Flash duration: 5 s–30 s Flash frequency: high, medium, low
Sound Warning	Offers 11 sound alarms and supports importing custom sound alarms.

Video

Video Compression	H.265; H.264B; H.264; H.264H; MJPEG(Sub Stream 1); smart H.265+; smart H.264+
Streaming Capability	3 streams
Resolution	Panorama: 4M (2560 × 1440); 3M (2048 × 1536); 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) Detail: 4M (2560 × 1440); 3M (2048 × 1536); 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	Main stream: 4 MP/3 MP/1080p/1.3 MP/720p@(1–25/30 fps) Sub stream 1: D1/CIF/VGA@(1–25/30 fps) Sub stream 2: 1080p/1.3 MP/720p@(1–25/30 fps)
Bit Rate Control	CBR/VBR
Video Bit Rate	H264: 96 Kbps–14848 Kbps H265: 38 Kbps–8960 Kbps
Day/Night	Auto (ICR)/Color/B/W
BLC	Yes
WDR	120 dB
HLC	Yes
White Balance	Auto; indoor; outdoor; tracking; manual; sodium lamp; natural light; street lamp
Gain Control	Auto; manual
Noise Reduction	2D NR; 3D NR
Motion Detection	Yes
Region of Interest (RoI)	Yes
Image Stabilization	EIS
Defog	Electronic
Digital Zoom	16×
Image Rotation	180°
S/N Ratio	≥ 55 dB

Audio

Audio Compression

PCM; G.711a; G.711Mu; G.726; MPEG2-Layer2; G722.1; G729; G723

Network

Network Port	RJ-45 (10/100 Base-T)
Network Protocol	FTP; RTMP; IPv6; Bonjour; IPv4; DNS; RTCP; PPPoE; NTP; RTP; 802.1x; HTTPS; SNMP; TCP/IP; DDNS; UPnP; NFS; ICMP; UDP; IGMP; HTTP; SSL; DHCP; SMTP; Qos; RTSP; ARP
Interoperability	ONVIF(Profile S&G&T);CGI;SDK
Streaming Method	Unicast/Multicast
User/Host	20 (total bandwidth: 64 M)
Storage	Micro SD card (512 GB); FTP/SFTP; NAS
Browser	IE 9 and later versions; Chrome 41 and later versions; Firefox 50 and later versions; Safari 10 and later versions
Management Software	DMSS; DSS Pro
Mobile Client	iOS; Android

Certification

Certifications	CE: EN55032/EN55024/EN50130-4
Audio Input	1 channel (LINE IN, bare wire)
Audio Output	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
Alarm Linkage	Capture; recording; send email; preset; tour; pattern; alarm digital input; audio; warning light
Alarm Event	Motion/tampering detection; audio detection; network disconnection detection; IP conflict detection; memory card state detection; memory space detection

Power

Power Supply	12 VDC, 3 A ± 10%; PoE+ (802.3at)
Power Consumption	Basic: 12 W Max. (Basic power consumption + illuminator+sound and light warning +PTZ operation + Heater ): 25 W (12 VDC)

Environment

Operating Temperature	–40 °C to +65 °C (–40 °F to +149 °F)
Operating Humidity	≤ 95%
Protection	TVS 6000 V lightning proof;IP66; surge protection; voltage transient protection

Structure

Product Dimensions	160.0 mm × 184.4 mm × 304.6 mm (6.30" × 7.26" × 11.99")(L × W × H)
Net Weight	3.41 kg (7.52 lb)

FAQ

Does this camera support auto tracking without a separate NVR?

Yes, the auto tracking feature is built into the camera itself. It works independently — no separate NVR or server required. The PTZ channel will automatically follow any detected human or vehicle.

Can I use this camera with a third-party NVR?

Yes, it supports ONVIF profiles, so it works with most third-party NVRs. For full feature access including Auto Tracking 3.0 and TiOC alarms, we recommend pairing it with a Dahua NVR.

How far can the IR night vision reach?

The built-in IR illuminators provide reliable night vision up to 100 meters (328 feet). Combined with the 25x optical zoom, you can identify subjects clearly even in total darkness.

What is the maximum SD card storage supported?

The camera supports microSD cards up to 512 GB. This allows for local edge storage without monthly fees — recordings are saved directly on the camera even if the network goes down.