LC-171 - DSC Dual Technology Outdoor Motion Detector with Dual PIR

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The DSC LC-171 is a unique motion detector utilizing dual passive infra-red elements and Microwave technology, designed for outdoor use.
Brand: DSC
Part Number: LC-171

Availability: In stock




The Best Defense is a Good Offense

The DSC LC-171 detector provide improved outdoor protection against intruders, before they make it too far on to a property or close to premises. With advanced digital signal processing, this outdoor PIR alarm provides accurate analysis of body dimensions and differentiation from backgrounds and pets or other animals to ensure reliable detection and false alarm immunity. Digital signal processing provides consistent communication because the signal is resistant to electrical (either radio frequency or electromagnetic) interference. Upon quick analysis of the signal from the detector, if an intruder is identified, the device will instantly notify the alarm system.

PIR & Microwave Sensors Provide High Accuracy to Prevent False Alarms

The LC-171 combines two PIR sensors, both which must be tripped, with a microwave sensor. These elements work to detect intruders without detecting pets or other animals, with the highest level of accuracy. The sensors are easily adjusted to customize range of detection.

Pet Immunity

Highly Accurate sensors provide quality detection while at the same time ignoring pets or other animals weighing up to 15kg (33lbs) without lens, up to 35kg (77lb) with lens.

Fast and Easy Installation

Once the DSC PIR motion detector is installed at the recommended height, installers simply conduct a brief walk test, make any necessary adjustments, and the unit is ready to perform. Highly visible LEDs can be viewed at a glance and help the installer identify the detection range from any distance or angle within the coverage pattern.

DSC PIR Motion Detector Features

  • Frequency: 24.125 GHz
  • Microwave detection based on Doppler concept
  • N.O. & N. C. Relays switched at the same time
  • Pet immunity up to 77 lbs (35 kg)
  • 16 levels of PIR sensitivity adjustment and 3 microwave sensitivity groups
  • Temperature compensation
  • Microcontroller signal processing
  • Front and back tamper protection
  • Audible indication of walk test and intruder detection
  • Unique waterproof sealed plastic design
  • Detection range: up to 59 ft (18 m)
  • Detect human intruders walking or running
  • No maintenance required
  • High RFI/EMI immunity
  • Protection from: direct sunlight, wind up to 30 m/sec, snow and rain, small animals, removal of the top cover and removal from mounting bracket
  • Rain and dust proof: IP65

Additional Info

Additional Info

Part Number LC-171
What's in the box (1) DSC Dual Technology Outdoor Motion Detector with Dual PIR
Variant N/A


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Dimensions 200mm x 86mm x 80mm
(7.9" x 3.8" x 3.2")
Weight 500gr (1.10 lb)
Detection Method Dual (Four Elements) PIR & Microwave Pulse Doppler
Power Input 9.6 to 16VDC
Current Draw (Stby) 21mA (±5%)
Current Draw (Active) 24mA (±5%)
Microwave Frequency 24.125 GHz
Tamper Switch: Contact Rating N.C 28VDC 0.1 A with 10 Ohm Series protection resistors
RF Immunity 10 V/m plus 80% AM from 80 MHz to 2GHz
Operating Temperatures -35°C~+55°C (-31°F-131°F)
IP Rating IP 65