Feature: 1. With 5 Blowpipes: The 5 blowpipes are delivered for multiple people, which can also be replaced after a long time, and can be reused after disinfection, which is environmentally friendly and sanitary. 2. Simple to Use: When the ethanol concentration exceeds 0.0178% BAC, the machine will be judged as drunk driving, and the screen will turn red, accompanied by flashing lights and buzzer alarm. 3. HD LED Backlight Color Screen: The 2.0 inch high definition backlight color screen is used, which is clear and easy to read. The backlight display can clearly see the values even on the dark road. 4. Reliable Performance: Advanced planar ethanol sensor with quick response. Direct test process LCD indication, audio warning exceeds preset limits. Sensor fault self check, low voltage indication. 5. High Accuracy Testing: The high accuracy chip and planar sensor will make the detection more accurate, more sensitive and anti interference. Exquisite and compact, convenient to carry. Specification: Item Type: Portable Breath Tester Product Material: ABS Color: As Pictures Shown Weight: Approx. 138g / 4.9oz Measurement Object: Ethanol Battery: 2 AAA Batteries (Shipped Without Battery) Product Size: Approx. 98.5x48.5x21.5mm / 3.9x1.9x0.8in Sensor Type: Flat Ethanol Sensor Accuracy: ±10% FS Working Current: ≤250mA Operating Temperature: -10°C-50°C Operating Humidity: ≤ 95% No Dews. Package List: 1 x Portable Breath Tester5 x Blowing Pipe 1 x Manual1 x Hanging Rope Note: Reminder before test: The ethanol intelligent breath tester can only be used to indicate that there may be ethanoll in the breath or blood. You should not take it as the only basis to determine whether it is safe to operate the equipment when you are drunk or driving a vehicle, or whether everyone who is engaged in a lot of activities has different physical reactions to the consumption of alcohol. His test results are only for reference.