Madlab electronic kit lie detector

Item number 57327 Brand Whadda Model WSG106 Share Write a review
Madlab electronic kit lie detector


The Lie Detector works by measuring galvanic response. In other words, when a person lies, they tend to sweat. Perspiration has a high sodium content, so sweat is conductive. Dry skin has a resistance of about 1 million ohms, whereas the resistance of moist skin is reduced by a factor of ten or more.

A person holding the probe wires will change the voltage at the upper probe wire depending on their skin resistance. The skin resistance is in parallel with R2 and, because it is likely to be similar to or smaller than R2, the voltage at the probe wire will fall as skin resistance falls.

This product is a replacement of: MLP106

  • power supply: 9 V battery (not incl.)
  • dimensions: 50 x 50 x 22 mm / 1.9 x 1.9 x 0.9″


Brand information
Brand Whadda
Size info
Length3,5 mm
Width15,5 mm
Height15,5 mm
Weight34 g
€ 6,90€ 5,70 Excl. VAT (NL)
Out of stock New stock expected on 2024-03-07
Show volume discounts Shipped from € 3,50 (NL) 30 days cooling-off Excellent service

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