This site is great!!!! But the product is a total rip off!!! The pricing is set up so that its stupid to not buy 2 but when you find they don't work and want to send them back for a refund you find you will only receive $60 refund and you pay the shipping meaning you end up with next to nothing so you keep the junk. Its a classic American rip off.
The product is as far from precision as it can get and instead of having a 10 inch cook-top it is more like 4 inches. They say it saves energy and the first time I used it I blew the breaker! Its junk and a ripoff, stay away,