I read somewhere that this was an Amazon exclusive set . . .Does anyone know if this is true or not?

No this is not an Amazon exclusive item. I was able to find it on other online vendors.

Can you build a polygraph with this kit?

Yes, you will find the project on page 50 of the manual Project #108 - 110

is the snap circuits 203 electronics kits about the same as the snap circuits 100?

The SC203 includes only a few of the same parts included in the SC100. But both kits have offer a different parts set & projects for you to enjoy. Please contact us at support@elenco.com and we can provide digital copies of the manuals so you can take a peek on what each kit offers.

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⚡ Snap, Build, Impress — Your STEM Journey Starts Here!

SNAP LEARN WITH ZERO TOOLS - Effortlessly build complex circuits with 42 snap modules—no soldering, no tools, just pure creative flow.
INTERACTIVE HANDS ON STEM FUN - Engage your analytical mind and problem-solving skills through tactile, screen-free learning designed for ages 8+.
TRUSTED STEM LEGACY SINCE 1970 S - Join millions who’ve grown smarter with Elenco’s engineering-rooted kits, blending education and endless fun.
IMPRESS WITH BODY POWERED CIRCUITS - Feel the thrill of completing circuits with your own touch—where you become part of the technology.
MASTER 203 REAL ELECTRONICS PROJECTS - Dive into a vast playground of circuits from basic lights to water leak detectors, fueling your STEM prowess.

Elenco Snap Circuits 203 is a multi-award-winning educational kit featuring 42 snap-together modules that enable users aged 8+ to complete 203 diverse electronics projects. With no tools or soldering required, it offers a hands-on, screen-free STEM learning experience supported by a full-color project manual. Perfect for developing analytical and problem-solving skills, this kit brings real-world electronics concepts to life in a fun, interactive way.

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Product Dimensions	38.1 x 5.59 x 30.48 cm; 997.9 g
Batteries	3 AA batteries required.
Manufacturer recommended age	8 years and up
Item model number	CM-200
Educational Objective(s)	STEM
Assembly Required	No
Batteries Required?	Yes
Batteries Included?	No
tech_spec_battery_description_toys	Alkaline
Material Type(s)	Plastic Metal
Remote Control Included?	No
Color	Multi-color
Release date	1 January 2016
ASIN	B00P871NOW

Elenco Snap Circuits 203 Electronics Exploration Kit | Over 200 STEM Projects | Full Color Project Manual | 42 Snap Modules | Unlimited Fun

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