2-Beam 150 Metre Infrared Anti-Theft Alarm Detector for Perimeter Security

This infrared detector forms a critical component of perimeter security systems for commercial and residential properties. Designed with two active beams, it creates an invisible detection curtain across distances from 30 to 150 metres, providing a first line of defence for warehouses, shopping centres, community spaces, and villas. Its core function is to detect intrusion attempts across this substantial range and relay an immediate signal via its wired connection to trigger an alarm. The black-housed unit operates on a standard 12V supply and is engineered to perform consistently within a broad temperature spectrum, making it a practical choice for year-round outdoor installation in varied climates.

Features and Construction

The detector's primary specification is its dual-beam infrared technology, which projects a defined detection zone described as a 'shooting' angle. This configuration is ideal for monitoring long, straight boundaries like walls, fences, or building perimeters.

Material and Build

The detector is housed in a black casing, which is a common choice for outdoor security equipment as it offers a low-profile, non-reflective appearance. The construction is focused on housing the infrared transmitter, receiver, and the necessary circuitry for beam alignment and signal processing. The product information specifies a wired communication method, indicating the internal build includes terminals or connectors for running physical cables to a central control panel, which can offer a more stable and secure link compared to wireless alternatives in certain environments.

Size and Practical Fit

The key 'size' specification for this product is its operational detection distance, which is adjustable or effective from 30 metres up to 150 metres. This defines the linear span it can reliably monitor. The shooting detection angle determines the width of the monitored zone at a given distance. This combination of range and angle allows installers to calculate coverage for specific site layouts, such as a long warehouse wall or the boundary of a villa garden. The physical mounting dimensions are not provided, so planning should account for the unit's own housing size during installation.

Uses and Placement

This detector is intended for perimeter protection scenarios where a reliable, long-range beam break detection is required. Its applications are directly supported by the source text, which lists warehouses, communities, shopping malls, villas, and walls.

Event or Professional Use

In professional and commercial settings, this detector is suited for securing the external boundaries of warehouses and industrial yards, where its 150-metre maximum range can cover significant stretches of fencing. Shopping malls can use these units to protect loading bays, service entrances, or less-frequented external corridors after hours. The wired communication is often preferred in professional installations for its reliability and because running conduit for cables is standard practice in commercial construction, reducing susceptibility to signal jamming or interference that can affect some wireless systems.

Everyday Home Use

For residential security, such as for villas or within gated communities, the detector can be installed along garden walls, across driveways, or around outbuildings to detect approach before an intruder reaches the main structure. The wide operating temperature range of -25°C to 55°C means it remains operational through seasonal extremes, from hot summers to freezing winters, which is crucial for always-on outdoor security. The low 3mA static current indicates it draws minimal power when in standby monitoring mode, which is a consideration for systems that may rely on backup batteries during a power cut.

Benefits and Buying Value

The value of this infrared detector lies in its specific combination of range, wired reliability, and environmental tolerance, which addresses common requirements for perimeter security.

Reuse and Low Maintenance

As a wired device with solid-state infrared components, it is designed for long-term, fixed installation with minimal moving parts that could wear out. The specified operating parameters provide clear guidelines for installation, helping ensure it functions correctly from the start and reducing the need for troubleshooting or repositioning. The robust temperature rating suggests the internal components are selected to withstand thermal stress, contributing to long-term operational stability and reducing weather-related failures.

Why Choose This Product

This detector offers a concrete solution for users who need a defined, long-range detection zone and prefer the certainty of a wired connection. Its 150-metre range is a key differentiator for covering large properties. The explicit mention of a shooting detection angle helps buyers understand it is for linear coverage, not wide-area volumetric sensing. The detailed specifications—12V operating voltage, 3mA static current, and the -25°C to 55°C range—provide all necessary technical data for electricians or installers to integrate it into a wider security system confidently, without guessing compatibility or environmental limits.