Features 1、High Accuracy Sensor: This breath detector uses high accuracy semiconductor sensor to monitor drunkenness levels, ensuring reliable and stable driving. 2、LCD Digital Display: The drunk driving tester adopts high definition LCD digital display, with precise values and sensitive testing, improving work efficiency. 3、3 Color LED Light: When the test result is below 0.08% BAC, the green LED lights up with 3 short beeps. When it exceeds 0.08% BAC, the red LED lights up with 3 short beeps. 4、Scientific Filtering: This drunk detector has built in purification bin, scientifically filters and removes impurities, ensuring more accurate detection results. 5、Battery Powered: Powered by 3 AAA batteries (not included), turn on the power button, wait for 10s, then blow evenly for 3‑6s until a beep is heard, and display the result for 5s. Specification Item Type: Drunk Driving Tester Material: ABS Battery Model: 3 x AAA Battery (not included) Detection Method: Semiconductor Gas Sensor Concentration Measurement Range in Exhaled Breath: 0-200mg/100mL Measurement Object: Concentration in exhaled breath Sensor Replacement: Not Support Use Temperature Range: -5℃-45℃ Storage Temperature Range: -20℃-50℃ Package List 1 x Alcohol Tester 1 x User Manual