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Amcrest Amcrest IP4M-S2112EW-AI
PTZ Camera with 4.1MP (2688×1520) resolution, 32° field of view, and 87m IR night vision range.
SPECIFICATIONS · AMCREST IP4M-S2112EW-AI
Specifications
About the Amcrest Amcrest IP4M-S2112EW-AI
The Amcrest Amcrest IP4M-S2112EW-AI is a high-speed dome PTZ that can patrol preset positions on a schedule and react to motion or analytics events. 4MP sits in the sweet spot for installations where storage is a concern but you still want crisper retroactive zooming during incident review. An IR reach above 80 m is unusual for the format and is intended for highway monitoring, large industrial sites, and airport perimeters where conventional cameras would simply lose the target after dark. A narrow field of view trades coverage area for pixel density at distance — the right choice when you need to read faces or plates far from the camera, e.g., long corridors, gate approaches, ANPR installations.
Best use cases for this camera
Outdoor perimeter & fenceline
With 87m IR reach and 4.1MP (2688×1520) resolution, this camera covers fences, yards, and approach roads in complete darkness. Mount on poles or eaves at 4–6 m height angled slightly downward.
Long corridor & aisle monitoring
The 32° narrow angle is intentionally tuned for corridor work — it concentrates pixel density along the length of the hallway rather than wasting resolution on the side walls. Mount at the far end facing along the corridor.
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.
License plate / ANPR
The combination of 32° narrow angle and 4.1MP (2688×1520) resolution provides the pixel density required for ANPR at typical lane widths, especially when paired with proper lane lighting and perpendicular mounting.
Strengths
- •4.1MP sensor preserves detail under digital zoom on recorded footage
- •87m IR range eliminates the need for external night-time illuminators
- •PTZ control enables operator-driven tracking and pre-set tours
- •38m effective range supports outdoor perimeter and parking-lot deployments
Considerations
- •Narrow angle requires more cameras to cover wide areas — plan camera count accordingly
- •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 | 2.9m | 14 m² | Entrance, corridor |
| 10m | 5.7m | 57 m² | Room, retail aisle |
| 15m | 8.6m | 129 m² | Warehouse, parking row |
| 20m | 11.5m | 229 m² | Parking row, courtyard |
| 30m | 17.2m | 516 m² | Parking lot, yard |
| 50m | 28.7m | 1434 m² | Perimeter, large area |
Field of View Visualization
Night Vision Performance
Daytime
Full 4.1MP (2688×1520) resolution at 32° field of view. Effective identification range up to 87m in good lighting conditions.
Nighttime (IR)
Built-in IR LEDs illuminate up to 87m in complete darkness. Switches to B/W mode for clear night footage.
Installation tips for the Amcrest IP4M-S2112EW-AI
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.
Avoid mounting under direct ceiling lights or behind glass — both reflect IR back into the lens and create severe glare in the image.
Plan cabling for multiple cameras to cover wide areas — at 32° you cover roughly 6 m of width per camera at 10 m distance.
Plan storage at roughly 16 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 Amcrest Amcrest IP4M-S2112EW-AI covers about 2.9 m of scene width; at 10 m that grows to 5.7 m, and at 20 m to 11.5 m. Translating those numbers through EN 62676-4 pixel-density thresholds, the camera can detect a person up to 188 m, observe up to 75 m, recognise up to 38 m, and produce identification-grade detail (the ≥250 px/m bar used by Polish and EU courts as evidentiary) up to 19 m. Effective range above the identify threshold relies on supplementary lighting or a longer-focal-length optic — the geometry above assumes the fixed lens declared by the manufacturer.
Power & cabling
The Amcrest Amcrest IP4M-S2112EW-AI draws an estimated 60.0 W under typical load (with the IR illuminator engaged where applicable), placing it in the 802.3bt Type 3 (Class 5–6, ≤60 W) budget. A single switch port supplies enough power without an injector. Cabling: stick to Cat6 STP for runs up to 80 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 Amcrest Amcrest IP4M-S2112EW-AI'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 Amcrest'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 Amcrest Amcrest IP4M-S2112EW-AI suitable for outdoor installation?
Amcrest 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 Amcrest Amcrest IP4M-S2112EW-AI?
The camera draws roughly 60.0 W in steady-state operation, requiring a 802.3bt Type 3 (Class 5–6, ≤60 W) switch port. A single Cat6 STP cable carries both data and power up to 80 m — beyond that, add an inline extender or convert to fibre near the camera.
How much storage does the Amcrest Amcrest IP4M-S2112EW-AI consume per day?
At 4.1MP (2688×1520) resolution, 15 fps H.265 continuous recording, the Amcrest IP4M-S2112EW-AI produces approximately 16 GB per day — about 480 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 Amcrest Amcrest IP4M-S2112EW-AI identify a person?
Per EN 62676-4:2025 pixel-density thresholds, this camera identifies (≥ 250 px/m on the target) up to about 19 m, recognises a person up to 38 m, observes general activity up to 75 m, and detects motion up to 188 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 Amcrest Amcrest IP4M-S2112EW-AI use?
Typical ingest is 6 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.
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