Built-in purification chamber, purify impurities, ensure the tester hygiene.
Accurate measurement value, LED high contrast display.
Three color indicators, with sounds of different frequencies.
Light weight and portable with a keychain for easy carrying.
USB rechargeable design, don't need to change the battery.
Battery: 3.7V, 120mAh
Item size: 83 * 22 * 22mm / 3.3 * 2.3 * 2.3in
Item weight: 100g / 3.5ounce
Package size: 100 * 65 * 55mm / 3.9 * 2.6 * 2.2in
Package weight: 140g / 4.9ounce
1 * Breathalyzer
1 * USB Cable