LCD Breathalyzer with Night Mode

A handheld digital breathalyzer featuring a backlit LCD screen for enhanced readability in low-light settings. Employs a semiconductor sensor to measure breath alcohol concentration across a range of 0.00–0.19% BAC (0.00–0.95 mg/L), suitable for personal monitoring and situational decision-making. Device activation is initiated with one button press; results appear instantly on the illuminated display and the unit powers down autonomously after five seconds. For dependable outcomes, users are advised to complete a warm-up cycle before initial use, abstain from alcohol for at least 20 minutes prior to testing, and maintain a minimum 3-minute gap between successive tests — all based on physiological alcohol metabolism principles.