Optex HX-40AM Wireless Pir Sensor Anti-masking Pier Mount

Product Description

The OPTEX HX-40AM is an outdoor wireless passive infrared (PIR) sensor designed for pier-mount installations requiring anti-masking detection capability. The unit covers a 40x40 degree detection field, making it suitable for perimeter security applications where adversarial masking attempts are a concern. Anti-masking technology alerts the system when the sensor lens is blocked, sprayed, or covered, maintaining detection integrity in monitored zones. Licensed security installers and low-voltage technicians are the primary trade professionals who install and commission this sensor.

This sensor is intended for outdoor perimeter and access-point protection in residential and commercial security systems. The pier-mount configuration suits gate posts, fence posts, and structural columns where a fixed detection field must be maintained. The 40x40 degree coverage pattern provides a focused zone appropriate for narrow corridors, entry lanes, and defined approach paths. It is supplied as a single unit per package and integrates with compatible wireless security receiver systems.

Key Features

• 40x40 degree outdoor detection pattern for focused perimeter coverage
• Anti-masking detection alerts the system when the lens is obstructed or tampered with
• Pier-mount form factor suited for posts, columns, and structural supports
• Wireless PIR technology eliminates the need for detection-circuit wiring runs
• Outdoor-rated construction for exterior installation environments

Compatibility

Designed as an OEM-style replacement or new-install wireless PIR sensor for outdoor perimeter security systems accepting compatible wireless PIR inputs. Refer to the system receiver documentation to confirm wireless protocol compatibility before installation.

Installation Notes

Installation should be performed by a licensed low-voltage or alarm system technician in accordance with local security system codes and the manufacturer product manual. Before mounting, confirm the pier or post structure is plumb and provides a stable, vibration-free surface to prevent nuisance triggers. Power down or disarm the associated wireless receiver panel before enrolling the device to avoid false alarm events during commissioning. Do not aim the sensor directly into areas of high thermal contrast such as HVAC exhaust vents or direct sun exposure, as these conditions can affect PIR performance.