jastek breath ketone meter, ketosis breath monitor, acetone tester for keto diet, portable ketone analyzer, ketone level tracker, ketogenic breath testing device, fitness ketosis checker | ketosis tracking, portable breath tester, accurately monitor ketones, breath-based testing white is up for auction in Health & Household. The current bid is $1.00, 98% below the $49.97 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.