STI 3601 Wireless Motion-Activated Sensor, Long Range 500', 140° 40' Detection Zone

Deliver consistent, long-range intrusion detection across your facility with the Safety Technology International STI-3601 wireless motion-activated sensor. Designed for security and surveillance applications, this PIR motion sensor gives operations teams clear, immediate alerts when someone enters a monitored area — even through doors, walls and floors. The STI-3601 provides a wide 140° detection angle with coverage up to 40 ft and a wireless communication capability that reaches up to 500 ft, enabling flexible placement at corners, corridors and external entry points.

Built for busy commercial and industrial environments, the sensor is weather-sealed for outdoor durability, battery powered for easy installation, and includes anti-masking features to reduce false alarms. Ten selectable chime tones let staff differentiate alerts by zone or priority, improving response and monitoring workflows. Whether you’re adding discrete perimeter sensors to a retail store, supplementing surveillance at a warehouse dock, or creating a notification network for facility monitoring, the STI-3601 is a scalable, low-voltage solution. Specify the STI-3601 for reliable motion detection — order today to enhance your security and monitoring coverage.

• Extend perimeter awareness with up to 500' wireless range so you can monitor remote entrances without additional wiring
• Reliable indoor/outdoor detection with a 140° x 40 ft. PIR zone for broad coverage of corridors, lobbies and loading docks
• Weather-sealed, battery-powered design delivers low-maintenance surveillance and dependable performance in varied environments
• Anti-masking protection and FCC certification enhance security integrity and regulatory compliance for business installations
• Easy integration with existing chime systems and ten selectable alerts for customizable on-site notification and staff response