U21 wireless surveillance camera with HD USB in-line portable monitor featuring 2MP CMOS sensor, 1080P resolution, low-power PIR human body sensor, and 16-metre detection range for home or small business security monitoring
U21 Wireless Surveillance Camera with HD USB Portable Monitor and 16-Metre Motion Detection

The U21 wireless surveillance camera system combines a compact camera unit with a portable USB in-line monitor, creating a straightforward security solution for homes or small premises. With its 2MP CMOS sensor delivering 1080P resolution footage and low-power PIR human body sensor detecting movement up to 16 metres away, this system provides essential monitoring capabilities without complex installation. The included portable monitor allows direct viewing of camera footage via USB connection, while multiple recording options accommodate different storage needs from direct recording to memory card storage lasting up to 20 days with the 64GB option.
Features and Construction

This surveillance system is built around practical security components designed for straightforward operation. The camera's technical specifications support reliable monitoring, while the portable viewing solution offers flexibility in how footage is accessed and reviewed.
Material and Build
The camera unit is housed in ABS plastic, providing durable casing for the internal components. This material choice contributes to the camera's 0.03kg weight, making it suitable for various mounting positions without requiring heavy-duty supports. The electronic components include a 1/3 inch CMOS image sensor and a fixed 2.8mm lens, working together to capture the 1080P resolution footage at 1920x1080 pixels with a signal-to-noise ratio greater than 48dB.
Size and Practical Fit
With its 1/3 inch camera size and lightweight construction, this surveillance system can be positioned discreetly in many indoor environments. The camera's working temperature range of -10°C to 60°C allows placement in various room conditions, though extreme environments outside this range should be avoided. The infrared lights provide 8 metres of irradiation distance, extending visibility in low-light situations where the 0.1 Lux minimum illumination specification becomes relevant.
Uses and Placement

The U21 system's combination of wireless camera and portable monitor supports multiple security applications. From residential monitoring to small business oversight, the technical specifications determine where and how effectively the system can operate.
Event or Professional Use
For temporary security needs or professional monitoring applications, the system's portability and straightforward setup offer practical advantages. The camera's 16-metre effective detection distance allows coverage of entryways, corridors, or storage areas, while the electronic shutter ranging from 1/3 second to 1/100,000 second accommodates various lighting conditions. The 5V power supply requirement means the system can be powered from standard USB ports or appropriate adaptors for flexible installation.
Everyday Home Use
In residential settings, this system provides basic security monitoring without complex configuration. The low-power PIR human body sensor triggers recording when motion is detected, helping to conserve storage space on the memory cards. Home users can choose between the different recording options based on their monitoring needs, with the 16G, 32G, and 64G memory cards offering 5, 10, and 20 days of storage respectively for reviewing footage as needed.
Benefits and Buying Value

This surveillance system delivers specific advantages through its technical specifications and included components. The combination of camera and monitor in one package provides immediate functionality without additional equipment purchases.
Reuse and Low Maintenance
The system's straightforward design supports repeated use in different locations as security needs change. The portable monitor can be connected to various USB power sources, while the camera's specified temperature range allows seasonal use in different room conditions. With no complex software installation required and the physical memory card storage option, the system maintains functionality through straightforward operation rather than ongoing technical maintenance.
Why Choose This Product
This surveillance system offers a complete monitoring solution with both capture and viewing components included. The 1080P resolution provides clearer identification than lower-resolution alternatives, while the wireless camera design avoids cable installation challenges. The multiple recording options allow users to select the storage duration that matches their review schedule, from 5 days with the 16G card to 20 days with the 64G option, providing practical flexibility based on individual security requirements.

