The BACscan F-40 breathalyzer combines elegant design with modern measurement technology based on an electrochemical cell. It is a leader in the class of electrochemical breathalyzers, not only due to the exceptional attention to detail that highlights the quality of its craftsmanship but also because of the high accuracy and repeatability of measurements, which have been confirmed by an independent laboratory. The results are displayed digitally in the range of 0.00 to 4.00 with a resolution of up to two decimal places. The BACscan F-40 features a built-in airflow sensor, a system that protects the measurement cell from damage due to improper testing, a counter for the number of measurements, and a function that reminds you to perform a calibration. Additionally, the device employs a modern system to check the proper functioning of the analyzer before and after each measurement. To minimize measurement error and maximize sensor lifespan, the tester is equipped with a temperature control module. This prevents measurements from being taken if the operating temperature range of the tester is exceeded, which could damage the components. An undeniable advantage of this device is the ability to define measurement units according to the user's preferences: mg/L, % BAC, g/L (the unit of measurement can be changed by service, factory setting: BACscan F-40). Individuals expecting accurate and repeatable measurements will benefit from this product.