Adopts semiconductor sensors, which with fine sensitivity and fast responsibility, simple and convenient to use. It show the final testing result in digital and cartoon mode, everyone can check themselves by this tester. 5 levels result: Verygood, normal, not , bad, very bad. Digital LCD and cartoon indication with orange backlight, save energy and environmental conservation, with soothing colors and not hurt your eyes. Quick response and resume, with self-checking to show different conditions. Bad breath would make people feel uncomfortable, especially stay with girlfriends or boyfriends face to face together, how to avoids embarrassing scene? You should try this odor breath tester! It help you to know your oral odor condition! Odor breath tester is specially designed to check people's breath quality. You can have a try. the POWER button, there display 9 seconds count down. Then the display flash "C", and right now you can breathe out 3 seconds evenly to the air intake. After one beep sound, it display the result, the result display 5 seconds, and shut off automatically. If you want to test time, just the Power button again. Portable design, small size with compact structure, easy to put into your pocket and carry around with you. Non-contact design, breathe out 5-10mm away from the detector, more hygiene. Battery saved design, low battery indication, 2xAAA battery can provides long service time (battery is not included). Sensor type: semiconductor sensor time: 9s Blowing time: 5s Working environment: relative humidity: 95% no dews Color: As Shown Material: ABS Package Contents: 1 x Bad Breath Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.