Vivotek CU9171-H 4MP Discreet Indoor Mini Cylinder Camera

The Vivotek CU9171-H is a compact 4MP IP camera engineered for covert surveillance in sensitive indoor environments. Its ultra-discreet pinhole cylinder design (Ø 24 x 30 mm, 19g) blends seamlessly into any indoor setting, making it ideal for applications where visual discretion is paramount. Despite its minimal footprint, this camera delivers professional-grade video capture with advanced imaging technologies that excel in challenging lighting conditions.

Key Features

• 4MP Resolution at 30fps – Delivers crisp, detailed images with 2688 x 1520 maximum resolution
• Ultra-Compact Design – Pinhole cylinder form factor (Ø 24 x 30 mm) for discreet installation
• WDR Pro Technology – Advanced wide dynamic range for high-contrast environments
• Extreme Low-Light Capability – 0.045 lux minimum illumination (F2.5, color mode) for near-total darkness monitoring
• Wide Field of View – 93° horizontal, 48° vertical, 117° diagonal coverage
• ePTZ Digital Zoom – Up to 48x digital zoom for detailed observation
• PoE Powered – Single cable installation simplifies deployment
• Professional Compression – H.264 and MJPEG support with Smart Stream III technology for bandwidth optimization
• Tamper Detection – Real-time alerts on camera interference
• 3D Noise Reduction – Enhanced clarity in low-light environments

Technical Specifications

• Sensor: 1/2.7" Progressive CMOS
• Lens: f = 3.7 mm, F2.5 aperture
• Dynamic Range: 120 dB for superior detail in extreme contrast
• Signal-to-Noise Ratio: 55.9 dB
• Shutter Speed: 1/5 to 1/32,000 sec. for precise exposure control
• Operating Temperature: -10°C to 50°C (14°F to 122°F)
• Humidity Tolerance: 90% RH non-condensing
• Detection Range: Up to 77 m for face detection, 30.5 m for observation, 15.4 m for recognition

Performance Capabilities

The CU9171-H excels in forensic applications, delivering exceptional detail at distance. With 120 dB dynamic range and WDR Pro, the camera maintains image clarity across extreme lighting transitions. Its 0.045 lux color sensitivity enables monitoring in near-darkness without IR reliance, preserving evidence quality and reducing IR artifacts. The 48x digital zoom combined with wide 117° diagonal field of view provides both expansive scene coverage and targeted monitoring.

Ideal Applications

• Retail and boutique environments requiring covert loss prevention
• Financial institutions and executive offices demanding visual discretion
• Museums, galleries, and high-end venues with aesthetic considerations
• Sensitive corporate spaces where visible security equipment is undesirable
• Forensic monitoring requiring ultra-high image fidelity in variable lighting

Marty Allison

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

The CU9171-H represents a paradigm shift in discreet surveillance. Its combination of extreme low-light sensitivity (0.045 lux), 120 dB dynamic range, and 4MP resolution eliminates the traditional trade-off between concealment and performance. Unlike standard pinhole cameras, the WDR Pro engine and 3D noise reduction maintain forensic-quality detail in challenging mixed-lighting environments common to retail and corporate settings.

The 48x ePTZ zoom enables post-event investigation without requiring repositioning. PoE power simplifies infrastructure demands, and Smart Stream III codec optimization reduces bandwidth without sacrificing investigative detail. This camera is best suited for organizations requiring forensic evidence quality wrapped in minimal form factor—ideal for high-value loss prevention scenarios where both aesthetics and evidence integrity matter.