Product description 100% and high quality Features: 1. Semiconductor sensor, high sensitivity 2. Quick test results, quick response and recovery 3. High precision, detection range: 0.000-0.199% BAC / 0.00-1.99 BAC / 0.00-0.99 mg / L 4. Easy to use and light in weight. Bring a bag for easy carrying 5. Low power consumption, automatic shutdown. long life 6. Sensor failure self-check 7. Red backlit LCD display. Description: Sensor: Advanced flat alcohol sensor Warm-up time: within 10 seconds Response time: within 5 seconds Operating temperature range: 5~40 Detection range: 0.000-0.199% BAC / 0.00-1.99 BAC / 0.00-0.99 mg / L Digital display result (%BAC/BAC/mg/L) Power input: 3V (3 x "AAA" alkaline batteries, not included) Product size: 1256824mm / 0.4101049875 x 0.2230971132 x 0.1115485566 inch Package included: 1 * Digital Breath Alcohol Tester+ 1* user manual (other accessories demo in the picture is not included.) Notes:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you did. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package included: Please check all accessories in the packing box before use. 1.Alcohol tester 2.Mouthpiece (5pcs) 3.User Manual 4.bag