Description The AT188S personal breathalyzer has a digital display, more compact, easy to use and provides accurate readings. Applications: This device is best used to help your friends and colleagues make responsible decisions after consuming alcohol. Features: Advanced flat surfaced sensor Portable and small size design No touch healthy design Low voltage indication Use AAA battery Technical data Sensor Type: Advanced flat surfaced sensor Test range: 0.00-0.20 Percent BAC;0.00-1.00mg/L ; 0.00-2.00‰BAC;0.00-2.00g/L; Warmup up time: Around 35s Working Temp: 0 Degree C-50 Degree C Working Humidity: =93 Percent RH No dews Display Screen: LCD Display Power: AAA battery Dimension: 123m*44m*19mm Weight: About 50g(without battery) Accuracy: ±0.02 Percent BAC at 0.05 Percent BAC About us, Hanwei Electronics Group Corporation(Stock no.:300007) founded in 1998, is a trustworthy innovative technology company, and the largest gas sensors and instruments manufacturer in China, listed on China's Growth Enterprise Board in the first batch, devote ourselves to promise a safe, , healthy and smart working and living environment. Around the IoT industry, Hanwei Electronics will combine sensors, intelligent terminal, communication technology, cloud computing, and geographic information IOT technology together closely, create Hanwei cloud, establish a complete IoT industry chain. Hanwei Electronics focuses on the customer value-oriented, provide perfect solutions for smart city, production safety, environmental protection, the health of the people's livelihood.