The BX Shield outdoor sensors are designed to protect the immediate boundary of your premises against intrusion. Not affected by small animals or by environmental changes, they are a perfect trigger for alarm systems or outdoor CCTV cameras. They provide two independent left-right curtain detection areas up to 12m each (24m in total). The BX Shield are available as wired, wireless, and anti-masking models.
PIR sensors rely on detecting the infrared radiation emitted by heat-emitting objects. This emission, invisible to the human eye, is discernible to sensors operating on infrared wavelengths. The BXS has 4 PIR detectors two left and two right. Each of the two PIR sensors have to be triggered for an alarm to be raised.
Protects the building line
BXS creates a narrow detection area along the building façade. This helps detect people approaching windows, doors, walls and exposed openings before they get inside.
Two independent detection sides
The left and right detection areas work independently. Installers get more control over coverage, especially on building corners, long walls, side passages and entrances.
Designed to reduce unwanted alarms
BXS is built for stable outdoor detection. It helps reduce nuisance alarms caused by small animals, environmental movement and changes in light, making it a strong choice for residential and commercial sites.
OPTEX BXS curtain sensors detect movement at the immediate boundary
BXS sensors use passive infrared detection to protect the outside edge of a building. Instead of covering a wide open area, they create narrow curtain detection along the wall, making them ideal for windows, doors, patios, garages, balconies and building façades. This helps detect an intruder before they reach the entry point.
Left and right independent curtain detection
Each BXS sensor provides two independent detection areas, left and right. Each side covers up to 12m, giving up to 24m total detection from one device. This means one sensor protects both directions along a wall, while allowing each side to be adjusted separately to suit the building layout.
Stable outdoor detection with small animal tolerance
BXS sensors are designed for outdoor boundary protection and stable performance around buildings. The series is not affected by small animals or common environmental changes, helping reduce unwanted alarms. BXS models also use double conductive shielding to add protection against strong sunlight and radio frequency interference.
Camera, alarm and lighting integration
BXS sensors work as early warning triggers for alarm systems, CCTV and lighting. Because the left and right sides operate independently, each side can trigger a different response. For example, the left side could activate one camera view, while the right side triggers another camera preset, light or alarm output.
Wired, wireless and anti-masking models
The BXS range includes wired, wireless and anti-masking models. This gives installers options for residential, commercial and higher-risk sites where boundary detection needs to match the alarm system, building layout and level of risk
Residential
Garage
Commercial
Warehouse
BXS FAQ
Yes, it can be adjusted by modifying each lens’ position.
The installation height is 0.80m to 1.2 m. This is applicable to all of the BX series units. In order to get the best result, install the detector from 0.09 to 1m high.
Yes, you can do it. The box contains masking tapes. Consult the installation manual for more details.
Adding our outdoor PIRs onto a wireless intrusion alarm system is simple. Our battery-operated sensors have enough space to accommodate most universal transmitters. As our sensors are very low current, the transmitter and sensor can be powered by the same batteries. A video was created to show you how to install the wireless transmitter. Watch our video tutorial.
Yes. It has an IP55 rating, operates between –30 °C and +60 °C, and is suitable for both indoor and outdoor mounting.
- BXS-ST: Standard PIR detector
- BXS-AM: Includes anti-masking function, which detects attempts to cover or spray the lens.
The BXS provides up to 24 m (80 ft) coverage total – 12 m (40 ft) on each side. Detection distance can be adjusted to 2.5, 3.5, 6.0, 8.5, or 12.0 m.
The BXS requires 9.5–18 V DC. Current draw is approx. 31 mA (BXS-ST) or 34 mA (BXS-AM) at 12 V DC.
Install the BXS at 0.8 – 1.2 m (2′7″ – 4′). The factory recommendation is 1.0 m for best performance.
Yes. With the optional pole mount plate (PMP-01) or back box, the BXS can be mounted on walls, poles, or conduits.
- TO WALL (0°) or AWAY FROM WALL (3°) settings are selectable.
- Each side (left/right) can be set independently for distance and sensitivity.
- Blinking red (≤60 sec): Warm-up
- Solid red (2 sec): Alarm triggered
- Blinking red (3x repeat): Masking detection (BXS-AM only)
- High, Middle (default), Low, or Extreme High can be set via DIP switches.
- Each side (left/right) is adjustable individually.
- Close the face cover — the unit automatically enters walk test mode.
- Confirm the LED lights for 2 seconds when detection occurs.
- Walk test mode expires 3 minutes after closing the cover, with LED blinking for 5 seconds.
Power up the sensor as normal and close the cover. When the cover is on, an automatic walk-test function is enabled. After 3 minutes, the sensor will flash quickly for 5 seconds to indicate that the walk test is going to expire.
