CCTVPLANNER.IO · CAMERA · ANNKE
Annke I51EX
PTZ Camera with 5.3MP (3072×1728) resolution, 81° field of view, and 30m IR night vision range. Features Super Low Light technology for superior night performance.
SPECIFICATIONS · I51EX
Specifications
About the Annke I51EX
The Annke I51EX is a high-speed dome PTZ that can patrol preset positions on a schedule and react to motion or analytics events. 5MP resolution sharpens the image well past 1080p — facial identification extends to roughly 20 meters and retroactive digital zoom on recorded footage stays crisp, without the storage and bandwidth cost of a full 4K stream. Medium IR range (20–40 m) is appropriate for typical residential driveways, small commercial perimeters, and back-of-house loading bays where reach beyond ~30 m is rarely needed at night. A wide 80–120° angle covers a large room or open area from a single mounting position, making it ideal for retail floors, conference rooms, and small parking lots. Super Low Light technology pulls usable color out of scenes lit by little more than a streetlight or moonlight, eliminating the need to drop into B/W mode in most night conditions.
Best use cases for this camera
Entrance, lobby & vestibule
The 81° field of view captures the entire entrance and surrounding waiting area from a single ceiling mount. Useful for capturing visitors as they enter and leave.
Large area patrol & target tracking
PTZ control enables operator-initiated tracking of suspicious activity, scheduled tours of preset positions overnight, and forensic zoom into recorded footage. Best paired with a wide-angle "overview" camera that triggers the PTZ via analytics.
Strengths
- •5.3MP sensor preserves detail under digital zoom on recorded footage
- •Super Low Light sensor maintains color detail in near-darkness
- •PTZ control enables operator-driven tracking and pre-set tours
Considerations
- •PTZ cameras only see one direction at a time — pair with a fixed overview camera to avoid blind spots
Coverage at Different Distances
| Distance | Coverage Width | Coverage Area | Use Case |
|---|---|---|---|
| 5m | 8.5m | 43 m² | Entrance, corridor |
| 10m | 17.1m | 171 m² | Room, retail aisle |
| 15m | 25.6m | 384 m² | Warehouse, parking row |
| 20m | 34.2m | 683 m² | Parking row, courtyard |
| 30m | 51.2m | 1537 m² | Parking lot, yard |
| 50m | 85.4m | 4270 m² | Perimeter, large area |
Field of View Visualization
Night Vision Performance
Daytime
Full 5.3MP (3072×1728) resolution at 81° field of view. Effective identification range up to 30m in good lighting conditions.
Nighttime (IR)
Built-in IR LEDs illuminate up to 30m in complete darkness. Super Low Light sensor captures colour images in near-darkness.
Installation tips for the I51EX
Mount above 4 m on a rigid pole or wall bracket — PTZ vibrations are amplified at low mounting heights and degrade image quality during pan operations.
Position so the most important subject (entrance, cash register, gate) is in the center third of the frame — peripheral pixel density drops with wide angles.
Plan storage at roughly 21 GB per camera per day for continuous H.265 recording at 15fps — verify NVR has sufficient HDD bay capacity.
Coverage geometry & DORI distances
At a 5-metre standoff the Annke I51EX covers about 8.5 m of scene width; at 10 m that grows to 17.1 m, and at 20 m to 34.2 m. Translating those numbers through EN 62676-4 pixel-density thresholds, the camera can detect a person up to 72 m, observe up to 29 m, recognise up to 14 m, and produce identification-grade detail (the ≥250 px/m bar used by Polish and EU courts as evidentiary) up to 7 m. Effective range above the identify threshold relies on supplementary lighting or a longer-focal-length optic — the geometry above assumes the 2.8mm lens declared by the manufacturer.
Power & cabling
The Annke I51EX draws an estimated 30.0 W under typical load (with the IR illuminator engaged where applicable), placing it in the 802.3at (Class 4, ≤30 W) budget. A single switch port supplies enough power without an injector. Cabling: stick to Cat6 STP for runs up to 100 m end-to-end — beyond that, add an inline PoE extender or move to fibre with a media converter at the camera end. On outdoor runs, route through ø25 PVC or PE conduit to keep the cable shielded from UV and rodents.
Privacy & legal (GDPR / RODO)
Any camera operating in a publicly accessible area falls under GDPR (RODO in Poland) — Art. 13 obliges the data controller to post an information sign at every entry point with controller name, DPO contact, lawful basis (typically Art. 6(1)(f) legitimate interest for property protection), purpose, and retention period. The Annke I51EX's PTZ pan range can sweep into neighbouring properties or public roads; document allowed pan limits in the installation record and configure privacy masks (see Annke's web-UI under "Privacy Mask") for any window or doorway you cannot legally surveil.
Installer time & cost (rough estimate)
A typical EU installer quotes 5–6 h of labour per ptz camera of this class (approximately €225–€275 excluding hardware), broken down as bracket mounting, cable termination at both ends, on-site commissioning, and a brief operator handover. Allow extra time for high mounts (>4 m), exterior installations requiring scaffolding, or sites where cable routing demands wall penetrations or conduit work.
Indicative EU 2024-2025 pricing — actual quotes vary by region, mounting height, and site conditions. Excludes hardware, transport, permits, and VAT.
Frequently asked questions
Is the Annke I51EX suitable for outdoor installation?
Annke PTZ models are generally designed for outdoor use with IP66 ingress rating and -30°C to +60°C operating range. Mount on a rigid pole at ≥ 4 m to dampen wind-driven vibration that would degrade the live image during pan operations.
What PoE class powers the Annke I51EX?
The camera draws roughly 30.0 W in steady-state operation, requiring a 802.3at (Class 4, ≤30 W) switch port. A single Cat6 STP cable carries both data and power up to 100 m — beyond that, add an inline extender or convert to fibre near the camera.
How much storage does the Annke I51EX consume per day?
At 5.3MP (3072×1728) resolution, 15 fps H.265 continuous recording, the I51EX produces approximately 21 GB per day — about 630 GB per month. Motion-only or event-triggered recording typically cuts that by 40–70 % depending on scene activity. Plan NVR HDD capacity for the longest retention period required by your privacy policy or insurance contract.
Up to what distance can the Annke I51EX identify a person?
Per EN 62676-4:2025 pixel-density thresholds, this camera identifies (≥ 250 px/m on the target) up to about 7 m, recognises a person up to 14 m, observes general activity up to 29 m, and detects motion up to 72 m. Identification distance assumes daylight or full IR illumination on the target — at the limits of the IR cone the effective identify distance shrinks roughly 30 %.
What network bandwidth does Annke I51EX use?
Typical ingest is 8 Mbps for the main stream (H.265, medium scene complexity, 15 fps) plus ~0.5 Mbps for a low-resolution sub-stream used by mobile clients. For a 16-camera installation of this class, plan a 50–100 Mbps NVR uplink and a dedicated VLAN for camera traffic.
Related Annke PTZ Cameras
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CZ504P (3K PTZ 4X)
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CZ825X (4K PTZ 25X)
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NightChroma NCPT500 (3K Pan-Tilt 2.8mm)
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NightChroma NCT425 (dual-sensor bullet+PTZ)
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Field of View Explained
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Camera Placement Guide
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