ketone breath meter,professional digital ketone breath analyzer testing ketosis with 10 mouthpieces(black) lencool <b> how to get accurate ketone readings?</b><br><br> 1. in order to get accurate ketone readings, please exhaust the residuals completely with the ketone meter before your first use by running the keto breath tester 3 times without blowing,because each ketone breath analyzer was tested during the production before shipping to warehouse, there maybe residuals; if you want to test another person consequently after your testing, please also kindly exhaust your previous residuals.<br><br> 2. please blow immediately within first 5 seconds when displaying blow on the ketosis tester if you finish the residuals exhaustion step, because the ketone breath tester starts analyzing the breath right after the first 5 seconds<br><br> <b>how to test your ketone?</b><br><br> 1.hold the power button for 3 seconds until the device turns on<br><br> 2.wait 20 seconds countdown for device warming-up, exhausting the residuals<br><br> 3.blow with the mouthpiece for 5-6 seconds, the testing result will be analyzed and displayed on the screen<br><br> <b>kind reminder:</b><br><br> readings will be slightly different from the blood meter because of different analyzing methods.br><br> please catch the same keto meter to track your own personal ketosis records, only in this way you can get your own changing status.<br><br> <b>package contains:</b><br><br> 1x portable ketone meter<br> 10x replaceable mouthpieces<br> 1x carrying string<br> 1x user manual<br> <br><b>2*aaa batteries are not included</b><br><br>