The BX Shield (BXS) series is a range of quad PIR sensors that are ideal for protecting windows and the immediate boundaries of a building or site. Combining great usability and versatile design, the BX Shield series includes four PIRs, two on each side of the unit. Detection range and sensitivity can be adjusted independently on each side of the sensor, up to 80ft total (40ft per side), for high-performing flexibility. Equipped with SMDA logic (Super Multidimensional Analysis), the BX Shield drastically improves immunity against changes in temperature or moving trees and vegetation, effectively distinguishing between the cause of nuisance false alarms and genuine intrusions. The BXS also excels in environments where the temperature difference between the human body and the background is very small, due to its extreme high detection mode increasing the PIR sensitivity, preventing any missed alarms.

Wireless-ready Model with Anti-Masking


Ideal for protecting windows and immediate boundaries of a building or site.

Application Images: 
  • Four PIR technology, two on each side
  • Completely independent detection setting per side
  • Scope of detection area up to 40ft on each side, 80ft total (12m/24m)
  • SMDA Logic: Differentiates nuisance false alarms & genuine intrusions
  • Size analysis function ignores sources of false alarms
  • Extreme high detection mode
  • Tamper output activates when face cover/back box is removed
  • Versatile design
  • Automatic walk test mode
Passive Infrared
Battery Powered
Product Type: 
Detection Images: 
Coverage Image: 
Product Specifications: 
Detection MethodPassive infrared
Coverage80ft (24m), 40ft (12m) on each side; 4 zones; 2 zones on each side, 180° narrow
PIR Distance Limit8 to 40ft (2.5 to 12m), 5 levels
Detection Angle From WallTo wall: 0° angled forward | Away wall: 3° angled forward selectable
Detectable Speed0.3 to 2.0m/s (1' to 6'7" /s)
SensitivityNormal: 2.0°C (3.6°F) at 0.6 m/s | Extreme high: 1.0°C (1.8°F) at 0.6 m/s selectable for each side individually
Power Input3 to 9 VDC lithium or alkaline batteries
Current Draw (except walk test)16 uA stand-by / 8 mA max. 3 VDC
Alarm Period2.0 ±1 sec.
Warm-up Period60 sec. or less (LED blinks)
Alarm Output (R)Solid-state switch, 10 VDC 0.01 A max. Individual; Right or General, N.O. or N.C. is selectable
Alarm Output (L)Solid-state switch, 10 VDC 0.01 A max. Individual; Left or General, N.O. or N.C. is selectable
Trouble OutputSolid-state switch, 10 VDC 0.01 A max. N.O. or N.C. is selectable
Tamper OutputTamper output is shared with trouble output
LED IndicatorRed LED; 1. Warm-up 2. Alarm 3. Masking detection (DIP switch ON or Walk test)
Operation Temperature-30°C to + 60°C (-22°F to +140°F)
Environment Humidity95% max.
International ProtectionIP55
MountingWall, pole (outdoor, indoor)
Mounting Height0.8 to 1.2m (2'7" to 4')
Weight550g (19.4oz)
Accessories1) Connector for power & alarm (R), 2) Connector for alarm (L), 3) Connector for trouble, 4) Velcro tape, 5) Screw (4x20 mm)x2
Dimensions Images: 

Additional Product Images