External Infrared Single Beam Alarm Sensor for Doors

Reliable infrared barrier protection for gates, doors and windows

designed to detect intrusions the moment someone crosses a protected line. This single beam infrared sensor creates an invisible barrier that, when interrupted, triggers an alarm through your connected security system, helping you protect entrances, perimeters and vulnerable access points.

This external positioning alarm sensor consists of an infrared transmitter and receiver that must be aligned to form a single, continuous beam. When a person or object breaks this beam, the sensor sends a signal to your alarm panel or security controller. It is suitable for mounting on gate posts, door frames, window surrounds and other structural surfaces where a linear detection zone is required. The unit is engineered for outdoor use, with a housing designed to resist typical external conditions when correctly installed and sealed. It operates from an external power source supplied by your alarm system or a dedicated power supply (not included), allowing integration into new or existing security setups. The device is compatible with most standard low-voltage alarm and automation systems when wired according to the manufacturer's instructions. Professional installation is recommended to ensure correct alignment, cable routing and configuration, but experienced users can also install it with basic tools and access to the control panel.

The sensor offers stable detection performance by continuously monitoring the infrared signal between transmitter and receiver. When properly aligned and configured, it helps reduce nuisance alarms from minor disturbances while still reacting quickly to genuine intrusions. Its compact format makes it suitable for discreet placement along fences, driveway entrances, loading bay doors, shopfront shutters and residential doors or windows. By acting as an early warning layer before an intruder reaches the interior of the building, it supports a more comprehensive security strategy.

Why It's a Smart Choice

• Creates an invisible detection line across gates, doors or windows for early intrusion alerting.
• Designed for external mounting, allowing protection of outdoor access points and perimeters.
• Integrates with existing alarm or automation systems via a wired connection and external power.

FAQ

Q: Does this sensor include a built-in power supply?
A: No. It requires an external low-voltage power source, typically provided by your alarm panel or a separate power supply.

Q: Can I use this sensor indoors as well as outdoors?
A: Yes. While it is designed for external positioning, it can also be installed indoors on doors, corridors or window areas where a linear detection barrier is needed.

Q: Do I need a professional installer?
A: Professional installation is recommended for accurate beam alignment and correct wiring, but experienced users familiar with alarm systems may be able to install it themselves.

Q: Will this work with my existing alarm system?
A: The sensor is designed to connect to most conventional wired alarm or control panels that support infrared barrier inputs. Check your panel specifications and follow the wiring guidance provided with the product.