Pro-Tech equiptment "TechTracker Model Pro 600" wire and valve locator. This piece of equiptment belonged to my grandfather, so I do not have much information on it. I will be putting it on Ebay, but if someone would like to buy it before the end of the auction, I will take it off. The tracker seems to work fine, and from what I can tell it has all of the parts and equiptment that it originally came with. I will send pictures upon request/interest. I'm looking for $350 OBO.