DSC LC-151

Dual-Tech Outdoor Motion Detector (Single PIR & Microwave) with adjustable Pet Immunity

Condition: New
Brand: DSC
Status: Obsolete
SKU: 51191
Manufacturer Part #: LC-151
Replacement: LC-181


The LC-151 and LC-171 are dual technology motion detectors that combine passive infrared and microwave detection with pet immunity.

The LC-151 and LC-171 detectors 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, these detectors provide 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.

Additional information

Weight 0.46 lbs
Dimensions 1.80 × 2.80 × 6.90 in






Production Status



  • Frequency: 10.525 GHz
  • Microwave detection based on Doppler concept
  • N.O. & N.C. relays switched at the same time
  • Installation height is calibration free from 6 ft to 8 ft (1.8 m to 2.4 m)
  • Pet Immune up to 33 lb (15 kg) without pet immunity lens or up to 80 lb (36 kg) when using supplied LC-F1-15X pet immunity lens
  • PIR sensitivity adjustment
  • MW intensity selection
  • Temperature compensation
  • Microcontroller signal processing
  • Front and back tamper protection
  • Unique waterproof and seal plastic design
  • Detection range: up to 49 ft (15 m)
  • Detects human intruders walking or running
  • No maintenance required
  • High RFI/EMI immunity
  • Protection from: direct sunlight, wind up to 30m/sec, snow and rain, small animals, removal of top cover and removal from mounting bracket
  • Rain and dust proof: IP65
  • LC-B1-15X wall mount bracket available separately


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Dual-Tech Outdoor Motions Detector; LC-151 and LC-171


DSC - Data Sheet

Dual-Tech Motion Sensor (Single PIR & Microwave) with adjustable Pet Immunity; LC-151


DSC - Installation Instructions & User Manual

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