The pocket-size AlcAlert measures blood-alcohol concentration from a person’s breath in seconds. Utilizing advanced semiconductor gas-sensor technology, it clearly displays the alcohol concentration in digital percentile increments. The AlcAlert is a snap to use: Simply press the button, wait for the beep, blow into the unit (no tube necessary!), and within a few seconds the LCD displays a digital readout. Protective carrying pouch and 2 AAA batteries included. The AlcAlert BT5500 is small enough to be carried in one's pocket or purse, and can be used on many people due to its mouthpiece free design.

Advanced Sensor Technology Utilizes advanced semiconductor gas-sensor technology to measure blood-alcohol level from a person’s breath. Compact Size Fits easily into your pocket, purse, or day-planner; about the same size as a disposable lighter. Simple and Quick to Use Blow into the unit, and within seconds read your BAC% on the LCD screen. Easy to Read Clearly displays level of blood alcohol concentration (% BAC) in increments of 0.01%, ranging from 0.00% to 0.12% BAC. Backlight Makes the LCD easy to read in low-light conditions. Error Warning Error Warning: Alerts you with "smart" messages regarding incomplete breath samples or saturation levels. Long Battery Life Lasts for more than 300 uses on 2 AAA alkaline batteries (included). Dual Low Battery Alert Alerts you when batteries need to be replaced soon, and also when batteries are too low for an accurate reading and need to be replaced immediately. Dimensions 3.5 x 1.25 x 0.5 inches; 1.6 ounces Includes Protective pouch and batteries (2 AAA type). 90-Day Warranty