Alcohol tester breathalyser with backlight alcohol meter alcoholmeter alcohol Concentration Meters portable digital keychain, it comes without retail box Digital alcohol tester This is a prefeional police digital breath alcohol tester. High quality and high accuracy and sensation, can respond in 5sec. With the port to insert mouthpiece. Health and convenience. Features: 1. Advanced flat surfaced alcohol sensor, high sensitivity 2. Rapid detect results,quick response and resume 3. High accuracy, detection range: 0.000-0.199% BAC / 0.00-1.99 BAC / 0.00-0.99 mg/L 4. Easy to use, Light weight. With a bag for it, easy to carry 5. Low power consumption, auto power-off. Long span life 6. Sensor fault self checking 7. Blue-colored backlight LCD display. Description: Color: GREEN LCD blacklight: Black Sensor: Advanced flat surfaced alcohol sensor Warm-up time: Within 10 seconds Respond 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 results (% BAC / BAC / mg/L) Power input: 3V (3 x "AAA" alkaline battery, not included) Net weight: 85g Dimension: 112*60*30mm Package weight: 195g Package size: 164*116*48mm Package included: 1 * Digital Breath Alcohol Tester 5*Mouthpiece