The GTX Portable Digital Alcohol Tester is a compact device designed to measure blood alcohol concentration, helping you monitor your sobriety levels quickly and accurately. It features an LCD screen with a red backlight for clear visibility in various lighting conditions and a built-in speaker that provides audio signals during operation. The device operates within a detection range of 0.00 to 0.19% BAC or 0.0 to 1.9 g/L, offering a fast response time of less than 5 seconds after blowing. Constructed from durable black ABS plastic, this tester is highly portable, weighing only 82 g and measuring 112 x 68 x 22 mm. It is powered by two 1.5V AAA batteries and requires a brief 10-second warm-up period before it is ready for a 10-second measurement cycle. To conserve energy, the unit automatically shuts off after one minute of inactivity. Because it includes a keychain attachment, you can easily carry it with your keys, making it a practical tool for those who need a reliable way to check their status while on the go in temperatures between 5°C and 40°C.