Features: Advanced semiconductor sensor, which w/ fine sensitivity and quick responsibility, simple and convenient to use. It will show the final test result in digital and cartoon mode, everyone can be verified by this tester. 5 result levels: very good, normal, not lousy, bad, very bad. Digital LCD and cartoon indication w/ orange backlight, save energy and environmental protection, w/ soothing colors and will not hurt your eyes. Quick response and resume, w/ self-checking to show different conditions. Package Includes: 1Pcs Bad Breath Tester Specifications: Sensor type: semiconductor sensor Heating time: 9s Blowing time: 5S Working environment: relative humidity: ≤ 95% without dews Power: 2 x aaa batteries (not included) Item size: 95 x 36 x 18mm / 3.74 x 1.42 x 0.71in Item note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Advanced semiconductor sensor, which w/ fine sensitivity and quick responsibility, simple and convenient to use. It will show the final test result in digital and cartoon mode, everyone can be verified by this tester. 5 result levels: very good, normal, not lousy, bad, very bad. Digital LCD and cartoon indication w/ orange backlight, save energy and environmental protection, w/ soothing colors and will not hurt your eyes. Quick response and resume, w/ self-checking to show different conditions.