Visonic DUET Dual Technology Motion Detector Sensor

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Visonic DUET Dual Technology Motion Detector Sensor
Brand: Visonic Security Systems
Part Number: DUET


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Visonic Security Systems



Dynamic Dual-Technology Detector

The Duet is a professional-grade dual-technology digital detector, designed to prevent false alarms in harsh environments such as commercial and light industrial areas. Duet combines in a single unit two complementary advanced technologies - a highly sensitive passive infrared (PIR) sensor and an active Microwave sensor - achieving unprecedented detection, stability and immunity to false alarms.

The dual-element PIR detector includes a user-selectable 1 or 2-pulse counter, as well as advanced temperature-compensation circuitry for unsurpassed false alarm immunity. It also provides creep-zone detection for enhanced reliability and catch performance.

Duet implements a new generation of patented technologies, including advanced microwave DRO front-end utilizing Digital Signal Processing (DSP), dynamic software filtering of fluorescent interferences and more. The result is the industry's best detection accuracy, stability, false alarm immunity and ultimate long-term reliability - in an elegant, durable and easily installed professional device.

Duet Features

  • Dual passive infrared and microwave digital technologies for unsurpassed false alarm immunity and reliability.
  • Optimized signal processing of both MW and PIR channels for superior detection without false alarms.
  • High-sensitivity coverage up to 18m x 18m / 60ft x 60ft with anti-sabotage creep-zone.
  • Programmable 1,2 pulse counter for maximum immunity to false alarms.
  • Six interchangeable lenses with coverage pattern up to 140deg..
  • Adjustable vertical calibration.
  • 9-16 VDC power supply.
  • Optional swivel brackets for maximum mounting flexibility.
  • Durable elegant design suitable for any office, commercial or light industrial environment.

Additional Info

Additional Info

Part Number DUET
What's in the box (1) Visonic DUET Dual Technology Motion Detector Sensor


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Input Voltage 9–16 VDC
Current Drain Approximately 20 mA at 12 VDC
PIR Detector Dual-element low noise pyroelectric type
PIR Pulse Counter 1 or 2 pulses with alternate polarity signal processing.
M.W. Detector Microstrip DRO-stabilized oscillator.
Microwave Frequency 10.525 GHz (USA) 10.687 GHz (UK)
Microwave Detection Range Adjustable between 25% and 100% of total range
Alarm Period 3-5 seconds
Relay Output Normally closed contacts with 18 ohms resistor in series. Contact ratings 0.1 A resistive / 30 VDC.
Tamper Contacts Normally closed, 0.5 A resistive / 24 VDC.
Detection Patterns 6 interchangeable lenses are available (see patterns below).
PIR Adjustment Vertically, 0° to –12° with calibrated scale.
Configuration Wall or corner mounting (without additional bracket).
Mounting Height Up to 3.6 m (12 ft.)
Optional Mounting Accessories BR-1: Swivel bracket, vertically adjustable 30° downward; horizontally adjustable 45° left/45° right.
BR-2: Kit consisting of BR-1 and a corner adapter.
BR-3: Kit consisting of BR-1 and a ceiling adapter.
Operating Temperatures –10°C to 50°C (14°F to 122°F)
Storage Temperatures –20°C to 60°C (–4°F to 140°F)
RFI Protection Greater than 20 V/m (20 to 1000 MHz)
Dimensions (H X W X D) 123 x 76 x 48 mm (4-13/16 x 3 x 1-7/8 in.)
Weight 145 g (4.5 oz).
Models Available DUET - standard version
Patents U.S. Patent 5,237,330, Microwave detector.
Other international patents applied for.