Features: 1.High Precision: Based on the high precision chip, the smart breathalyzer can measure more accurately. 2.LED Display: LED HD display reads and converts accurate value, accurate and sensitive, Chinese display. 3.Health Test: No contact, just breath to test, avoid bacterial growth, more healthy measurement. 4.Accurate Detection: The alcohol drops automatically, the impurity is removed automatically, the detection is more accurate. 5.With Indicator Light: Three color indicator light, whether exceed the standard at a glance, built in large capacity lithium battery, cycle power supply, longer life. Specification: Item Type: Breathalyzer Material: ABS+Metal Lithium Battery: 200MAH (Built in Battery) Feature: Small non contact alcohol breath analyzer Test Range: 0.00%-0.19% BAC 0.0-1.9g /L PackageList: 1 x Breathalyzer 1 x Data Cable 1 x Manual Note: It is recommended to start the test 20 minutes after drinking,which is more accurate