Portable breathalyzer digital breath alcohol tester High precision: This alcohol tester features a high-precision semiconductor alcohol sensor and delivers results in just 5 seconds to help determine if you are fit to drive. Easy to use: Press the power button to start the breathalyzer, wait 10 seconds for warm-up, then blow into the device for 5 seconds. Results are displayed within 5 seconds. Alcohol concentration is shown on the digital display with audible alerts. Touchless and healthier: No mouthpiece required, enabling non-e with no additional consumable costs. Advanced blowing design ensures accurate test results while promoting hygiene. Portable design: Compact and lightweight, this breathalyzer fits easily in your pocket and is ideal for weddings, parties, feasts, or other social events to help ensure safe driving after drinking. Customizable alarm settings. Red LED backlight for clear visibility of the digital display. Powered by 2 AAA batteries (not included). Features automatic shutdown to save power. Specifications: Item name: Breathalyzer Material: ABS Color: White Warm-up time: 10 seconds Response time: Within 5 seconds Working environment: 5°C to 40°C Test range: 0.00% – 0.19% BAC Battery: 2 AAA (not included) Product weight: 25g Product size: 10.2 x 3.8 x 1.8cm Package weight: 40g Package size: 15 x 7.7 x 2.2cm Package contents: 1 x Breathalyzer 1 x Hanging rope 1 x User manual