AT8900 is an advanced portable Breath Alcohol Tester with an up-to-date design and an easy to use interface.Its core component adopts a Changeable Electrochemical Sensor module that makes the tester more accurate,highly sensitive, provided of a strong anti-jamming ability as well as easy calibration. The designof its multicolor OLED, its simply keyboard, and touch screen technology make this tester fast and suitable foroutdoor use. The anti-return mouthpiece ensures thehealth and safety of users.This product is useful for drunk driving detection or industrial medicine inspections, thus helping avoiding accidentsand protecting human life. Its delicate appearance and comfortable handle make this alcohol tester the bestchoice for breath alcohol testing.Technical Specifications Fuel cell sensor: Sensor Module changeable design more convenient for recalibration andmodule change Key input: Simplified keyboard with touch panel Display:2.83 inch OLED screen, applicable for wide range of working temperature Quick and precise analysis: Ensure a high sensitivity to alcohol and stable & reliable working life Memories: 20,000 memories stored with full information, like driver information, vehicle No.,Police ID, testing result and type, date and time, location, calibration date etc Built-in/detachable printer:the printer can be detached to be stand-alone to work separately, alsostand-alone thermal, dot-matrix printer optional GPS: Geography information provided by GPS Data Upload: PC upload by USB Password management: password can be changed by users  Indication unit: Multi - unit (mg/L, mg/100ml, g/L, %oBAC, %BAC) optional Mouthpiece:disposable anti-return mouthpiece design Power supply: Rechargeable Li battery, 7.4V/2500mA Display range: 0.000-2.000mg/L(0-440mg/100mL,0.000-4.000g/L,0.000-0.400%BAC,0.000-2.000%oBAC Auto flow monitoring: Flow detection automatically Temperature range: working range -30oC-50oC