U21 Wireless Surveillance Camera: HD USB Monitor with PIR Sensor for Indoor Security

The U21 Wireless Surveillance Camera system combines a discreet monitoring camera with a portable HD USB in-line monitor, creating a standalone security solution suitable for homes, small offices, or temporary setups. Unlike systems requiring Wi-Fi or complex DVRs, this unit allows for direct viewing of the 1080P camera feed on its integrated screen. Its core function is activated by a low-power PIR (Passive Infrared) sensor designed to detect human body movement, which helps initiate recording and conserve energy by focusing on events rather than continuous operation. This practical design is aimed at users seeking a straightforward, portable monitoring option with local storage capabilities.

Features and Construction

The U21 camera is built around key specifications that define its performance and application. Its construction uses ABS plastic, contributing to a light total weight of 0.03 kg, which facilitates flexible placement or mounting.

Material and Build

The camera housing is made from ABS plastic, a material chosen for its rigidity and light weight, making the unit suitable for various indoor mounting scenarios. The electronic components, including the CMOS image sensor, are housed within this casing. The system's power supply voltage is 5V, and it is designed to operate within a temperature range of -10°C to 60°C, covering typical indoor environmental conditions.

Size and Practical Fit

The camera's image sensor size is 1/3 inch. With an effective detection distance of 16 metres and an infrared illumination distance of 8 metres, it covers a substantial area for indoor monitoring. The 2.8mm lens provides a specific field of view. Its compact form factor and light weight mean it can be positioned on a shelf, mounted on a wall, or used as a portable unit for different monitoring needs without requiring extensive installation.

Uses and Placement

This camera system is designed for scenarios where simple, direct oversight is needed without network dependency. The integrated monitor provides immediate access to the live feed or recorded footage.

Event or Professional Use

For temporary event monitoring, small business security, or oversight of a specific room like a stockroom or office, the U21's portability and standalone operation are practical. The option to choose a model with internal storage (16G, 32G, or 64G) allows for recording from 5 to 20 days of triggered events, providing a evidence log. The PIR sensor ensures recording is primarily activated by human movement, which can help sort through footage more efficiently.

Everyday Home Use

In a home setting, the camera can be used for monitoring entryways, living areas, or as a child monitor. The direct connection to the portable screen offers privacy and simplicity, avoiding cloud services or complex apps. The 1080P resolution aids in identifying details clearly on the monitor within the camera's operational range.

Benefits and Buying Value

The value of the U21 system lies in its integrated design and specific feature set, which addresses a need for straightforward, locally contained surveillance.

Reuse and Low Maintenance

The system is designed for reuse in different locations due to its portable nature and standard 5V power requirement. Maintenance is centred around managing the recorded footage on the internal memory card (on applicable models) and ensuring a clear line of sight within its 16-metre range. The ABS plastic housing is wipe-clean for basic upkeep.

Why Choose This Product

This product may suit users looking for a surveillance camera that operates independently of a home network or internet connection, with all viewing and storage handled locally. The combination of the PIR motion sensor, choice of local storage capacity, and the integrated monitor presents a specific solution compared to cameras that require separate recording devices or monthly subscriptions. It provides a concrete set of features—1080P resolution, a 16-metre range, and optional internal storage—for its intended monitoring tasks.