This is a KIT, it requires Soldering and Assembly

LD-1 LIE DETECTOR Kit

SKU: LD-1
$9.95Price
  • LD-1 LIE DETECTOR 
    This kit can be great fun at parties.
    When you lie, generally your hands will sweat and the more
    you sweat the louder the tone.
    This kit allows you to measure these changes, only a slight
    amount of change will cause the tone to increase in frequency. 
    Power requirement 6 to 15v DC.
    PC Board SIZE: .75" x 1"