Lumber Wizard III--does it do the job?

I use one every time I run rough stock thru my planer. Aset of 25" planer blades are over $100. So far the wizard has found several nails and a few slugs. Buck shot I dont mind as it is soft.:)
 
Works for me, As was previously said, has paid for itself repeatedly. Doues need to be recalibrated often, I use the wires in my chest... I rub it across my chest where the surgeon lift those wire stiches, If it reads them then it reads any near by metal. If not then turn the knoob until it does.
 
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