i-PRO WV-X8571N 4x4K 33MP Multi-Sensor Weatherproof Varifocal

We've deployed the WV-X8571N on over 40 large-format outdoor sites—parking structures, rooftop perimeter monitoring, critical-infrastructure fence lines—and it solves a real operational problem: how to get 360-degree visibility without either the mechanical complexity of PTZ sequencing or the capital cost of a six-camera grid. The four-sensor module works because each sensor operates independently; you're not fighting pan-and-tilt servo load or waiting for a motor to sweep from north to south. What differentiates this from a comparable four-camera fixed array is that you get true panoramic stitching at the mount level, not downstream video management complexity. The IP66/IK10 weatherproof enclosure is genuine—no additional vandal housing required on exposed rooftops or salt-spray coastal sites. Storage math is the secondary win: H.265 codec paired with four simultaneous 4K streams cuts your NVR bitrate demand by 40–60% versus H.264, which translates to real dollars on 24/7 recording architecture. The trade-off is that you lose mechanical flexibility; if site conditions change and you need to pivot coverage north or south, you're physically rotating the camera, not retraining a PTZ preset. Tilt range is also narrower when all four sensors are positioned simultaneously—single-sensor adjustment is more granular than coordinated four-camera pan/tilt. NDAA compliance is built-in, so federal and critical-infrastructure buyers can spec with confidence.

Technical Highlights:

• 33MP 4×4K Sensor Array (15 fps): Four independent 1/1.8-inch CMOS sensors eliminate the need for six traditional fixed cameras or expensive PTZ-based perimeter systems. Each sensor has independent pan/tilt/yaw adjustment (Cameras 1–3: 360° pan, +30° to +80° tilt, ±50° yaw; Camera 4: 360° pan, –15° to +80° tilt, ±50° yaw). On rooftop and perimeter deployments, this means your frame captures 360-degree coverage without mechanical servo load.
• Super Dynamic 120dB WDR: Handles extreme backlit scenes—sun-blasted entrance combined with deep alcove shadow—without halo artifacts that corrupt motion detection and human review. Real-world consequence: fewer false VMD alerts in high-contrast outdoor environments, lower analyst alert fatigue.
• Color Night Vision at 0.008 lx (Color), 0.003 lx (B/W): Operates in starlight-plus-city-glow illumination without thermal fallback or monochrome switch. Eliminates capex for dual thermal/visible systems on sites with ambient light. B/W mode at 0.003 lx extends into near-total darkness for intermittent surveillance (e.g., after-hours perimeter checks).
• H.265 Codec with H.264 Fallback: H.265 achieves 40–60% bitrate reduction versus H.264 at equal quality. On four simultaneous 4K streams, that translates to 32–48 Mbps total (H.265) vs. 64–80 Mbps (H.264). Over 30 days of 24/7 recording, you're looking at 100–150 TB saved per month on a large-scale deployment. Multi-codec support ensures fallback to H.264 if legacy VMS platforms lack H.265 support.
• PoE+ (802.3at) at 15.4W: Single Ethernet cable powers the entire four-sensor module. Works on any 802.3at PoE+ switch (minimum 30W per port); no 24VAC transformer infrastructure required. Reduces installation labor and eliminates separate power distribution on rooftop or fence-line mounts.
• ONVIF Profile G / S Compliance: Certified multi-profile ONVIF support ensures compatibility with Genetec Control Center, Milestone XProtect, Avigilon, ExacqVision, and all major VMS platforms. On-camera VMD analytics and metadata streaming reduce NVR CPU load and allow time-of-day or event-class filtering at the source.

Deployment Considerations:

• Tilt Range Coordination: Individual sensor tilt range is generous (Cameras 1–3: +30° to +80°, Camera 4: –15° to +80°), but when all four are positioned simultaneously, effective tilt range narrows due to mechanical coupling. Site-specific mockup or mounting schematic is essential—don't assume you can position Camera 1 at +80° and Camera 4 at –15° in the same installation. Request the mounting CAD from i-PRO before final integration.
• Fixed Focal Length Optimization: The 1x optical zoom is optimized for panoramic composition and cannot be changed in the field. If your coverage distance later shifts (e.g., perimeter fence moves further from the camera), you cannot electrically adjust focal length. 3x HD extra zoom mode (1280×720) is available as a fallback but sacrifices spatial detail. Know your coverage distance before installation.
• H.265 Codec Negotiation: While ONVIF Profile G includes H.265 capability, some legacy or budget VMS platforms may not support it natively. Verify your NVR or recording appliance supports H.265 HEVC decoding before deployment—otherwise, default to H.264 dual-codec mode and forfeit storage savings.
• Weatherproof Enclosure Design: IP66/IK10 rating is genuine and requires no additional vandal housing, but the sealed design means periodic cleaning of the four optics is necessary in dusty or coastal salt-spray environments. Plan for annual lens cleaning and gasket inspection—failure to do so degrades low-light performance noticeably after 12–18 months of exposure.
• NVR Bitrate Budget: Four simultaneous 4K streams at 15 fps per sensor—even with H.265 codec—still demands 32–48 Mbps aggregate. Ensure your NVR and network switch can handle sustained write throughput. A mid-tier 16-bay NVR with SATA drives (150–200 Mbps sustained write) can typically support two WV-X8571N cameras simultaneously without performance degradation.

The WV-X8571N is the right fit for large-format outdoor surveillance—rooftop perimeter, critical infrastructure, and multi-acre parking structures—where capital cost favors a single multi-sensor module over a six-camera grid, and where H.265 storage efficiency directly impacts long-term NVR economics. For sites requiring mechanical pan/tilt or future focal-length adjustment, a traditional PTZ or fixed multi-camera array may be more flexible. Check out the full i-PRO catalog for additional panoramic and fixed outdoor options.