Line Detector®


The Line Detector® is an audio feedback unit that plays verbal messages or sound effects whenever someone “walking the line” steps off.

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Item Number: LD


The Line Detector® is a programmable speaker that plays audio messages or sound effects whenever a program participant “walking the line” with Fatal Vision® Goggles missteps off the line. Reinforce your lesson by playing your own pre-recorded messages, like “Buzzed Driving is Drunk Driving!” This unit is ideal for use with the DIES® Activity Mats or with the yellow-and-black “Walk the Line” tape. Use the Line Detector® with both the Fatal Vision® Alcohol Impairment Simulation Goggles and the Fatal Vision® Concussion Goggles.


  • 1 – speaker unit
  • 1 – 10’ x 1/2” vinyl “Walk the Line” strip
  • 1 – carrying case 
  • 1 – roll of yellow-and-black “Walk the Line” adhesive-backed tape

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