Lie Detector Kit

Code: N55FL

Lie Detector Kit is rated 4.0 out of 5 by 3.
  • y_2017, m_9, d_19, h_5
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasreviews, tv_1, tr_2
  • loc_en_GB, sid_N55FL, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_maplin-en_gb
  • Build your own lie detector
  • Catch your family and friends out when you think they’ve been lying
  • Powered by a single 9v PP3 battery

Product details

Lie Detector Kit

• Build your own lie detector
• Catch your family and friends out when you think they’ve been lying
• Powered by a single 9v PP3 battery

How does it detect lies?
This kit demonstrates the basic principles of lie detection. Using small components it detects the change of resistance of the skin in the presence of sweat. By doing this it will illuminate either the green LED for true or the red LED for false allowing you to find out whether someone is lying or not.

How difficult is this to put together?
This kit is for the beginner due to the less complex nature of the components. It is a great tool for teaching children and the less technically advanced the basics of circuitry. It is advised that children are supervised when handling a soldering iron as these can be hot!
Rated 5 out of 5 by from This was bought as part of a gift for our 8 year old daughter who loves all things science, and cool stuff like this lie detector kit, (also the voice changer). It kept everyone at a recent large family party entertained. It was very Impressive at how accurate it was and how it 'caught' out all those family members trying to trick it and lie!!!! A pretty impressive piece of kit at a very small price, the cheapest party game that has spanned all ages at a party that I've ever bought!!! Would definitely recommend it its a must have for all homes!!! Anyone who calls at our house is 'subjected' to a lie detector test the fun goes on and on!!!
Date published: 2013-07-21
Rated 5 out of 5 by from I am unable to review the product as it was bought as a Secret Santa present. The service I received however, was first class.
Date published: 2017-01-02
  • y_2017, m_9, d_19, h_5
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasreviews, tv_1, tr_2
  • loc_en_GB, sid_N55FL, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_maplin-en_gb

Is this designed as a bit of a laugh and just for fun or does this really work?

Asked by: Jackie
This kit demonstrates the basic principles of lie detection. Using small components it detects the change of resistance of the skin in the presence of sweat. By doing this it will illuminate either the green LED for true or the red LED for false allowing you to find out whether someone is lying or not.
Answered by: darren cordon
Date published: 2017-01-30

Can I get a copy of the circuit please 

Asked by: Von28
This can be found in the link below http://52.50.15.149/Downloads/user-manual-9911
Answered by: Dominic
Date published: 2016-11-07

is there a video available of it working....my one is staying on constant red and not sure why.....

Asked by: jayjay
Unfortunately we do not have a video of it working .
Answered by: Darren
Date published: 2016-10-01

The lie detector always turns off the green light indicating a lie - never turns off the red light.

Asked by: chalieminecraft
This service is for frequently asked questions and does not allow two way communication, In order for us to best assist you with your technical issue please contact us on the details below: 0333 400 9500 or email technical@maplin.co.uk
Answered by: Dominic
Date published: 2016-07-04

What are the kit contents? Thanks.

Asked by: Fabian
A list of the contents can be found in the download tab in the Data Sheet.
Answered by: Brad
Date published: 2015-11-16

Is this an really lie detector or just a game ? 

Asked by: Philip16
This is a simple kit to show proof of concept.
Answered by: Dominic
Date published: 2017-01-27

Can I have a copy of the circuit diagram to explain how the circuit works to a work experience student please?

Asked by: MartinC
I have emailed a copy of this to you. If anyone would like a copy of the datasheet, please email technical@maplin.co.uk
Answered by: PaulaC
Date published: 2015-07-17

I have soldering iron but no solder wire, is this included?

Asked by: sarah
No soldering wire is included in this kit. You would have to supply your own.
Answered by: Billy
Date published: 2015-07-17
  • y_2017, m_9, d_20, h_3CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_16
  • loc_en_GB, sid_N55FL, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_maplin-en_gb

Bulk Prices

Item code Item name Quantity Price
N55FL Lie Detector Kit (1+) £6.99

Why not tell us and our B2B sales team about your specific business needs and expectations?

At Maplin, we’re always looking for innovations and technology that can help your business work more efficiently.

With a dedicated business team and special services available only to business customers, you can access our electronics and technology solutions through our wide network of over 200 stores, our website with more than 20,000 products or though your personal account manager over the phone.

Working with organisations for nearly 30 years, Maplin offers a nationwide range of benefits to our business users:

  • 30 day EOM credit account
  • volume discount pricing
  • online and in-store use of account
  • one-to-one account management
  • bespoke product sourcing and branding
  • free delivery on orders over £10
  • scheduled and forward ordering service

Contact our business team on 

0333 400 9740 to open an account or discuss your business needs.

To receive your free copy of the Maplin Catalogue just call 0333 400 9740.

£6.99

  • Home Delivery
  • Click & Collect

Related Products
Build a dark activated colour night light, Create ...
Build a dark activated colour night light, Create an adjustable light that cycles through multiple colours, Simple to solder with 10 parts, Requires four AA batteries (not included, Order Code L43AL), Designed and manufactured in the UK by KitronikWhat can ...
Make a great amp with a 3.5mm Jack ...
Make a great amp with a 3.5mm Jack input, on/off switch and volume control, Create an amp with 1W output per channel and 2 channels, Minimal soldering is required with 8 parts, Requires a 9V battery or 12V power supply ...
Grab attention or get into the party mood ...
Grab attention or get into the party mood with this dual white LED, Adjust the flashing pace between 1.5Hz and 20Hz, Simple and fun to solder with 16 parts, Requires one 9V (PP3) battery (not included, Order Code L46AL)What can ...
Mains powered UV lantern designed to illuminate invisible ...
Mains powered UV lantern designed to illuminate invisible markings, Ideal for use on items marked with UV ink such as money, driving licences and bank cards, Two UV fluorescent bulbs for a quick and discrete way to check currency, White ...