Features 1、Be made of high quality material, lightweight and durable in use. 2、Digital display: which can improve the detection efficiency. 3、Easy to use: quick response and with automatic shut down function. 4、It can analyze the concentration of alcohol in the blood at any time and anywhere, which is very convenient. 5、Portable design, which is very easy to hold in your hand,and carry in your pocket, car or handbag. Specifications: Features: Be made of high quality material, lightweight and durable in use. Digital display: which can improve the detection efficiency. Easy to use: quick response and with automatic shut down function. It can analyze the concentration of alcohol in the blood at any time and anywhere, which is very convenient. Portable design, which is very easy to hold in your hand,and carry in your pocket, car or handbag. Specification: Type: Digital Alcohol Tester Detection range: 0.00-0.19% BAC and 0.0-1.9g / l Function: speaker, Auto off wihthin 1 minute Battery: 2 1.5 V AAA alkaline batteries (NOT INCLUDED). Working time: Heating: 10 seconds Response: <5 seconds Ambient temperature: 5-40 degrees Size: 112 * 68 * 22（mm）/ 4.4 * 2.6 * 0.8in Package List: 1 * Manual 1 * Digital Breath Alcohol Tester (OPP bag) 5 * Inhaler Sleeves Note: 1.Please note that the battery is NOT included in package. Package List