1. Small and portable, no need for blowpipe, avoid secondary pollution, non-contact breathing.2. The test is fast and the results are timely. It only takes 20 seconds from blowing to get the results (10 seconds to warm up, 3-5 seconds to blow, and respond within 5 seconds).3. The LED display has clear readings, and the high-contrast LED display has two unit values and is easy to read.4. The three-color indicator of red, orange and green shows the alcohol concentration.5. Our business philosophy is to always put quality and customers first, constantly innovate, and constantly bring high-quality new products to customers.Specification:Sensor: Semiconductor sensorDisplay: LCD (black)Shell material: ABSTest range: 0.00-0.19% (0-1.9g/L)Measurement unit: mg/L, mg/mlMeasurement mode: automaticMeasurement time: 20 secondsPower supply: built-in lithium batteryPower adapter: DC5V 1AOperating temperature: 0C to 45CWarm-up time: 10 secondsBlow time: 10 seconds, greater than 4 secondsResponse time: less than 5 secondsOperating current: 250mA (maximum)Dimensions: 90x25x26mmProducts include:1*alcohol tester1*Charging cable1*Description