Features:-Built-in purification chamber, scientific filtration, only alcohol is left, and detection is more accurate.-It adopts non-contact design to avoid bacterial growth in the blowpipe, making the measurement healthier.-Equipped with a high-resolution color screen to display readings clearly.-It has 3 indicator lights, which is clear at a glance. The green light indicates a sober state, the yellow light indicates a drinking state, and the red light indicates a drunk state. With alarm voice reminder.-Built-in rechargeable lithium battery, long battery life, can be used for a long time on a single charge.Specifications:Material: PCColor: blackBattery capacity: 200mAhDrunk state: red light onDrinking state: yellow light onNot drinking state: green light onS.
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