Product
Precision Xtra
The Abbott Labs device Ferriss says he uses with blood strips to measure ketones.
Mentions
107: Grump on Grump with Tim Ferriss
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9:33
a device from Abbott Labs ... called the Precision Extra, X-T-R-A
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10:02
they have separate strips that you can insert for ketones
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50:38
the Precision Extra with an XTRA, the glucometer slash ketone ... measuring device
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51:06
the glucose strips are very cheap. The ketone strips are very expensive.