The Ketone Breath Testing method is far more accurate than urine strip testing, and it's also more convenient. With the digital ketone breathalyzer, you only need to exhale into the device. This saves you from finger pricks, and the device can be used thousands of times repeatedly, making it more cost-effective than testing strips. The Portable Ketone Breath Tester is designed to be carried around anywhere in your pocket, ensuring you can monitor your ketosis levels at all times. The ketone breath meter features 3 LED indications: Green Light (Ketosis Reading Successfully), Amber Light (Low Battery), Red Light (Ketosis Reading Unsuccessful). The ketone breath monitor is easy to use with 1-button operation to obtain ketone readings. A reading of 0.0 signifies that you are not in a state of ketosis, while readings between 0.5 and 3.0 signify that you are in the optimal ketone zone. For more detailed reading details, please refer to the product page.