Visonic has designed one of the industry's most accurate and reliable detectors in a stylish and easily installed professional appliance.

The Duet merges the highly sensitive passive infrared (PIR) sensor and an active Microwave sensor to generate a device that achieves exceptional detection and stability and immunity to false alarms. 

Features include:

• Unprecedented false alarm immunity and reliability
• Optimized signal processing of both MW and PIR channels
• Highly-sensitive coverage up to 60ft x 60ft (18m x 18m) with anti-sabotage creep-zone
• User-programmable 1 or 2 pulse counter for maximum false alarm resistance
• Six interchangeable lenses with coverage pattern up to 140°
• Adjustable vertical calibration for personal specifications
• 9-16 VDC power supply
• Optional swivel brackets for maximum mounting versatility
• Enduring stylish design suited for any office, commercial or light industrial environment