PLEASE NOTE: There are currently 3 different methods of measuring ketones in the body - breath, blood and urine. Each method of measuring ketones are different from each other and will therefore provide different readings. Therefore it is not possible to compare results between breath, blood and urine. How to get accurate ketone readings? 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. 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 How To Test Your Ketone? 1.Hold the power button for 3 seconds until the device turns on 2.Wait 20 seconds countdown for device warming-up, exhausting the residuals 3.Blow with the mouthpiece for 5-6 seconds, the testing result will be analyzed and displayed on the screen Kind Reminder: Readings will be slightly different from the blood meter because of different analyzing methods. Please catch the same keto meter to track your own personal ketosis records, only in this way you can get your own changing status. Package Contains: 1x portable ketone meter 10x replaceable mouthpieces 1x carrying string 1x user manual 2 AA Batteries are not includedMONITOR YOUR ACETONE LEVEL and WEIGHT - Following weekly and days results. It will help you plan your nutrition and fitness regime. no replacement strips or additional supplies to purchase. IDEAL FOR KETO DIET - The Ketone Breath Meter is perfect for those on the Keto diet who want to quickly, easily and accurately track their blood ketone levels. It will help you plan your nutrition and fitness regime.2 AAA batteries (not included). KETONE METER HAS 32 RECENT TEST RECORS For CHECK - In order to get accurat 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. KETO BREATH MONITOR - Easy to use to get the ketone readings: Reading of 0.0 signify you are still not in ketosis state, while the readings between 0.5 and 3.0, signify you are in full state of ketosis, which is the optimal ketone zone more reading details can be checked in the detailed description page. GREATER COMFORT SPEED - Only requires a 5 Second of breath and yields results.Save you from finger pricks, and the device can be used several thousands times repeatedly, comparatively speaking, you can save much than testing strips The leading competitor requires twice the droplet size and takes 70 longer to provide a test result.