Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

DescriptionThis is a professional police digital breath alcohol tester. High quality and high accuracy and sensation， can respond in 5 sec. It is health and convenience.It is recommended that user's manual must be read before using for first time.Features:-Advanced flat surfaced alcohol sensor， high sensitivity-Rapid detect results， quick response and resume-High accuracy， detection range: 0.000～0.199% BAC；0.00～1.99‰ BAC；0.00～0.99 mg/L(BrAC).-Low power consumption. Auto power off. Long span lifeSensor fault self checking-Blue-colored backlight LCD display.Note: The mouth pieces are in the back of the tester， please open the back cover to find them.Specifications:-LCD back light: Blue-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)-Color: Black-Power input: 3V (3 x "AAA" alkaline battery， not included)-Dimension: 112*61*29mmPackage:1 x Breath Alcohol Tester1 x User manual