Are 'advanced electromagnetic' de-icing devices for your car legit? I took one apart to find out

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ZDNET's key takeaways

• Be wary of scam gadgets with spurious claims.
• This electromagnetic device did not remove snow.
• Focus on de-icers, scrapers, and windshield covers.

Sometimes I'm rather impressed by the ingenuity of those in the business of making scammy gadgets. Over the years, I've examined a wide range of products, from scam devices that claim to save you money on your power bill to a high-power USB charger filled with an unusual goo-like substance.

Also: Want to cut your electric bill? Skip these scam 'power-saving' devices - and buy this instead 

The most recent scammy gadget that came across my workbench was an "advanced electromagnetic antifreeze snow removal device." A relative of a friend of mine bought the device, wondered why it didn't do what it claimed, and it ended up in my ...