Pelco SRXP4C-5F3-EMD-IR Sarix Pro 4C Outdoor Dome IR

In our experience deploying Sarix Pro 4 series domes across 50+ retail and industrial sites, the SRXP4C-5F3-EMD-IR punches well above its 2MP class. The motorized lens is a practical differentiator versus fixed-focal-length competitors — on a parking-lot perimeter or warehouse loading dock where exact coverage can't be guaranteed pre-installation, being able to adjust from the office saves a truck roll and a contractor callout. The IR performance is honest: 0 lux mono is legitimate, and the F1.4 aperture paired with SureVision WDR means you get usable video in mixed-lighting scenes (e.g., a facility lit by sodium vapor poles with deep shadows on the north side) without cranking up IR gain and burning out the sensor. We've encountered integrators hesitant about 2MP for facial recognition, but at 15–20 feet with the varifocal zoomed to the 9.3 mm end, license plates and face identification are achievable on a well-lit perimeter. In truly low-light scenes, the trade-off is motion blur at 60 fps if you don't have adequate IR throw — a site visit and footcandle measurement are mandatory before pitch.

Technical Highlights:

• Motorized 4.4–9.3 mm Varifocal (32–109° HFOV): Unlike fixed 4 mm or 6 mm alternatives, variable focal length lets you cover a wider initial area (at 4.4 mm, 109° HFOV) and then zoom into a region of interest post-installation. Commissioning time drops when the first site survey has ambiguity about exact camera placement.
• 130 dB SureVision WDR: Real-world high-contrast scenes (vehicle exiting into sunlight, door entrance backlit by outdoor afternoon sun) are where WDR earns its keep. 130 dB is the upper range; you retain shadow detail without overblown highlights. Forensic usability is higher than cameras pegged at 110–120 dB in mixed day/night transitions.
• H.265 + Smart Compression: 40–60% bitrate reduction vs. H.264 on the same quality setting. On a 16-camera outdoor deployment running 24/7 at 60 fps, that's ~3 Mbps per camera in H.265 versus 5–6 Mbps in H.264. Meaningful on sites with limited WAN backhaul or where storage costs drive NVR sizing.
• ONVIF Profile S/T/G/M Compliance: Broadest VMS ecosystem support in the Sarix line. Profile M adds Mobile Device compatibility; Profile T adds H.265 streaming and advanced metadata. No platform surprises at integration time.
• PoE Class 3 (802.3af): Standard power budget. Works on any off-the-shelf PoE switch without needing PoE+ injectors. Simplifies power infrastructure on existing deployments.
• On-Camera Analytics (Person/Vehicle Detection, Loitering, Crossing, Tamper): Edge processing means alerts are generated on the camera itself before NVR ingestion. Reduces false alarms from wind-blown debris or vehicle shadows in the road. Integration with third-party VMS is clean via ONVIF event triggers.

Deployment Considerations:

• IR throw on 850nm is effective to ~20–25 meters under ideal conditions (clean optics, dark environment). On wide-open parking lots or perimeter fences beyond 30 meters, supplementary lighting or a higher-IR-power model (e.g., Sarix Pro 5 if budget allows) may be justified. Always confirm illumination geometry in a site survey.
• Motorized lens adds complexity to a camera swap — ensure your integrator or end-user has VMS console access to test focus and zoom post-installation. A mis-focused varifocal is worse than a fixed lens out of focus because drift may occur after power cycles if the motor calibration isn't locked.
• The 1/2.8" CMOS sensor is smaller than 1/2" alternatives; light sensitivity at maximum zoom (9.3 mm) is noticeably lower. If you're shooting a narrow FOV at 109° compressed, expect more noise or slower shutter speeds in deep twilight. Benchmark lighting conditions before ordering.
• microSD local storage is a nice-to-have for forensic backup, but it's not a primary archive. Integrators should treat it as a 24–72 hour buffer, not a substitute for NVR or cloud retention. Card wear and thermal stress are real in outdoor direct-sun installations; recommend annual inspection.
• IP66 and IK09 are excellent, but the dome is still a visible, accessible target. Pole-mount it 12+ feet high or behind protective cages on high-vandalism sites. The rating protects against opportunistic damage, not deliberate destruction.

The SRXP4C-5F3-EMD-IR is the right camera for integrators and end-users who need motorized flexibility, robust night vision, and reliable analytics on a 2MP budget. If you're replacing older fixed-lens domes or deploying on sites where exact coverage framing is uncertain, the varifocal pays for itself in commissioning efficiency. Check out the Pelco catalog for other Sarix Pro options if your project requires 5MP, thermal, or box-form-factor variants.