Wireless surveillance camera with 1080P HD video, 16 metre motion detection range, and low-power PIR human body sensor for home security monitoring via USB-powered portable monitor
Wireless surveillance camera with 1080P HD video, 16 metre motion detection range, and low-power PIR human body sensor for home security monitoring via USB-powered portable monitor
U21 Wireless Surveillance Camera: 1080P HD Monitoring with 16 Metre Motion Detection Range
The U21 wireless surveillance camera system provides clear 1080P high-definition video monitoring for home security applications. This compact system combines a small-body camera with a portable USB-powered monitor, offering flexible placement options without complex installation. With its low-power PIR human body sensor detecting movement within 16 metres and infrared night vision covering 8 metres, it delivers reliable surveillance across various lighting conditions. The camera's ABS plastic construction houses professional-grade components including a CMOS image sensor and 2.8mm lens, while operating efficiently on just 5V power supplied through the USB connection to the monitor.
Features and Construction
The U21 camera system combines several key technical specifications to deliver effective surveillance monitoring. Its compact design belies the professional features packed into the 1/3 inch housing, making it suitable for discreet placement in various home environments.
Material and Build
Constructed from ABS plastic, the U21 camera housing provides lightweight durability suitable for indoor security applications. The material choice contributes to the system's overall portability while protecting the internal components including the CMOS image sensor. This sensor captures video at 2 million pixels with a signal-to-noise ratio greater than 48dB, ensuring clear footage with minimal interference. The 2.8mm lens provides a practical field of view for surveillance applications, balancing coverage area with detail capture.
Size and Practical Fit
Measuring just 1/3 inch in size and weighing 0.03 units, the U21 camera represents a compact surveillance solution that can be positioned discreetly. Its small body design allows for placement in various locations without drawing attention, while the wireless connection to the portable monitor eliminates the need for extensive cabling. The system operates within a temperature range of -10℃ to 60℃, making it suitable for different indoor environments from cool basements to warmer attic spaces. The electronic shutter adjusts from 1/3 second to 1/100,000 second, providing flexibility for capturing both stationary scenes and fast-moving subjects.
Uses and Placement
The U21 wireless surveillance camera system addresses several practical security monitoring needs through its combination of features. Its wireless design and portable monitor allow for flexible deployment in various residential settings where traditional wired systems might be impractical or too visible.
Event or Professional Use
For event monitoring or temporary security needs, the U21 system offers quick deployment without permanent installation. The portable monitor connects via USB to the camera, providing immediate viewing capability without complex setup procedures. With its 16 metre effective detection distance, the system can monitor entry points, valuable item storage areas, or perimeter spaces during events or business hours. The four recording models allow selection based on specific needs, whether requiring direct monitoring only or extended video retention from 5 to 20 days depending on the memory card capacity chosen.
Everyday Home Use
In residential settings, the U21 provides discreet monitoring of living spaces, entryways, or specific rooms. The low-power PIR human body sensor activates recording when movement is detected within its 16 metre range, conserving storage space while capturing relevant activity. The infrared night vision with 8 metre irradiation distance ensures monitoring continues during low-light conditions without visible illumination that might alert subjects. Home users can select between the direct recording model for live viewing or choose memory card options matching their retention requirements, from 5 days with the 16G card to 20 days with the 64G card.
Benefits and Buying Value
The U21 wireless surveillance camera delivers practical security monitoring through its combination of technical specifications and user-friendly design. Rather than competing on exaggerated claims, it provides measurable capabilities that address specific surveillance requirements with transparent specifications.
Reuse and Low Maintenance
The system's USB-powered design and portable monitor enable relocation as security needs change, avoiding the permanence of wired installations. The ABS plastic construction requires minimal maintenance beyond occasional cleaning, with no complex mechanical parts needing regular servicing. With operating temperatures from -10℃ to 60℃, the camera maintains functionality across seasonal changes in unheated or uncooled spaces. The electronic shutter's wide adjustment range from 1/3 second to 1/100,000 second accommodates different lighting conditions without manual intervention once configured.
Why Choose This Product
This surveillance camera system offers specific advantages through its combination of 1080P HD video quality, 16 metre motion detection, and flexible storage options. The clear specification of 1920*1080 resolution, 2 million pixel capture, and 1080P TVL horizontal resolution provides transparency about video quality expectations. The quantified 16 metre effective distance for the PIR sensor and 8 metre infrared irradiation distance establishes realistic performance parameters. By offering four distinct models—direct recording plus three memory card options—users can select precisely the storage capacity matching their retention needs without paying for unnecessary capability.
