Kevin:
An induction burner is not suitable for tempering chocolate. You can use one (in conjunction with a double boiler) as a chocolate melter (though some professional induction burners might go as low as 115-120F), but that's not the same thing as tempering.
If you are space and budget constrained and want an actual tempering machine, a machine from Chocovision or ACMC are the least expensive choices. If you are going to be tempering by hand, there are a number of much less expensive options than an induction burner for melting chocolate and holding it in temper after manually tempering it.
:: Clay
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@DiscoverChoc