One-button operation for easy use; test completed in 22 seconds. LCD display for clear reading. Different audible alerts indicate varying levels of alcohol concentration exceeding the legal limit. Features highly sensitive semiconductor gas sensor for fast and accurate readings. Powered by 3 AAA batteries (batteries not included). Detection method: Semiconductor gas sensor Alcohol concentration measurement range (exhaled breath): 0–200 mg/100 mL Operating current: 120 mA Measurement target: Alcohol concentration in exhaled breath Battery type: 3 × AAA (1.5 V) Sensor replacement: Not possible Operating voltage: 4.5 V Operating temperature range: –5 °C to 45 °C Weight: 75 g Storage temperature range: –20 °C to 50 °C Color: Black Material: Plastic Dimensions: 120 mm × 56 mm × 17 mm Package contents: 1 × Alcohol Tester Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 mg/100 mL.