Important Tips to Get Accurate Ketones Readings! The monitor needs to be exhausted before your first use since it may have residuals from production to warehouse; if you want to test another person consequently after your testing, please also kindly exhaust your previous residuals. The unit of measurement for breath ketone analyzer is parts per million (ppm).When the body enters a state of ketosis, it begins to produce ketones, which are byproducts of fat metabolism.As the body produces more ketones, the concentration of acetone in the breath also increases. Using Steps: 1. Powered by 2x AAA alkaline batteries (not included) 2. Press the power button for 3 seconds to start device 3. Warm-up and exhaust residuals 4. Blow for 5-6 seconds right after warm-up 5. Ketone meter analyzes and reading shows 6. No more painful finger pricks or messy urine strips Breath Acetone Concentration Readings Instructions (PPM): 0 ~ 1.9 PPM: You are not in ketosis or just right before ketosis. 2.0 ~ 3.9 PPM: You are at very early stage of ketosis. 4.0 ~ 9.9 PPM: You are in a light status of ketosis. The body fat is burning at a low pace. 10 ~ 39 PPM: You are in the optimum level of ketosis. This is the stable fat burning zone, the process of fat being used by the body as the main source of energy. 40 ~ 59 PPM: Be Caution! You are approaching too much ketosis level. Adjust your level to under 40ppm. 60 ~ 99 PPM: Danger! You are in too high level of ketosis. Ketoacidosis. Contents of Package: 1x ketosis breath analyzer device 10x mouthpieces 1x User's ManualKetone breath meter 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 replace you with brand new product at no charge, if you meet any problem during operation with our keto test devices, please contact our service team, and please check to make sure that all parts and components are included in the package. If any part is missing, please contact the retailer. Cautions before measurement: Be cautious about factors that may affect your results because the device is with high sensitivity sensor and avoid brushing your teeth, smoking, drinking or eating foods 30minutes before taking the test for accurate results. In order to accurately analyze and track your testing readings, we strongly recommend testing your ketone levels under the same conditions each time right after waking up in the morning before consuming anything in fasting status. Breath ketone tester detects your breath acetone from 0 to 99 PPM and follow 6 level guidance: 0.0-1.9ppm (No ketosis), 2.0-3.9ppm (Early Stage Ketosis), 4.0-9.9ppm (Light Ketosis), 10-39ppm (Stable Fat Burning Zone), 40-59ppm (Caution-High Ketosis), 60-99ppm (Ketoacidosis); Tracking breath acetone is a better measure of what your body is actually using for fuel because acetone in our breath is an actual byproduct of fat burning, and 80% of fat that we burn leaves the body through the lungs. This ketone breath meter is an easy-using and self-monitoring device for individuals following on a keto life. Breath ketosis meter saves you from finger pricks, and the device can be used repeatedly by replacing the mouthpiece, which saves your money for testing from continiously buying strips, also more convenient because you only need to breathe with the monitor for 5-6 seconds. The ketosis breath analyzer needs to be exhausted before your first use. To do this, turn on the keto breath meter, wait for the 20 seconds countdown to be completed, and turn it off. Repeat the same procedure 1-2 times (without blowing) before you proceed to your first test. During testing, please blow immediately within first 5-6 seconds when displaying "blo" on the ketosis tester, since the ketone breath tester starts analyzing the breath right after the first 6 seconds.Best Sellers Rank: See Top 100 in Health & Household. : B0BW49ND3M. Manufacturer: BreePoot. Date First Available: February 17, 2023. Package Dimensions: 6.1 x 3.9 x 1.65 inches; 3.53 Ounces.