How To Know If You Are in Ketosis? If your goal is to get into ketosis as fast as possible, you have to test your ketone levels. Why? Testing helps you recognize what foods or habits kick you out of ketosis. How To Test Your Ketone? Using our Ketone meter for breath testing, it is a type of meter specifically calibrated for measuring the level of ketosis for those on a ketogenic diet. 1.Hold the power button for 3 seconds until the device turns on 2.Wait 20 seconds countdown for device warming-up 3.Blow with the mouthpiece for 6 seconds, the testing result will be displayed on the screen: Package Contains: 1 x Ketone Meter 10 x Replaceable Mouthpieces 1 x Carrying String 1 x User Manual Powered by 2 AA Batteries are not includedAFTER-SALE SERVICE: Ketone breathalyzer is guaranteed with 12 months. If you are not satisfied for any reason, we offer money back for 30 days after purchase, or we will repair or replace the defective product at no charge. AUTOMATIC TRAFFIC LIGHT INDICATOR: Portable Ketone breath tester designed to carry around anywhere in your pocket, and make sure you are in ketosis all the time the ketone breath meter with 3 LED indications: Green Light (Ketosis Reading Successfully), Amber Light (Low Battery), Red Light (Ketosis Reading Unsuccessfully). 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. 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. ULTRA-PORTABLE: Breath Ketone Meter save you from finger pricks, and the device can be used several thousands times repeatedly, comparatively speaking, you can save much than testing strips.making it easy to take with you anywhere you go. and easily fits in a purse or pocket. Test yourself and friends, or a family member. the Trace really is perfect for anyone looking for a quick, easy and reliable way to test their Ketosis.