SPECIFICATIONS Sensor Type: Fuel cell Testing Time: <5 Sec Display : 1.77-inch LCD Detection Range : 0.00 - 0.40%BAC; 0.00-4.00‰.BAC; 0.00 - 2.00mg/L; 0.00 - 4.00g/L Power: 4×AA batteries Pre-set Level: 0.05%BAC; 0.50‰BAC; 0.25mg/L ; 0.50g/L Working Environment : 0? - 50°C,=95%RH,No dews Accuracy : ±0.01 at 0.05%BAC Working Time : >2000 blowing times (full charge) Warm-up Time : <5 seconds Dimensions: 284mm*68.5mm*74mm Weight : about 400g CAUTIONS To have accurate indication of blood alcohol concentration,please test at least 15 minutes later after drinking. To keep accuracy of alcohol tester,it's highly recommended to be recalibrated in every 6months. Do not put smoke into the tube,which can damage the sensor. Do not use it beyond -10°?-50°?. Do not clean surface by Ethanol. Please use soft wet cloth and neutral detergent. WIDELY APPLICATION?Adopt advanced 16 bit low power consumption MCU and suitable for factory, workshop, office, car, hotel, mine, etc. CHANGEABLE UNITS?Switchable result units(mg/l, g/I,%BAC,‰%oBAC)and temperaturescale(C,F) and can meet more needs . QUICK ANALYSIS?Short warm-up time, fast response and resume,and support the consecutive test available for busy working time . LIGHTING INFICATION FUNCTION?Matrix type warninglamp,Two level audible and visible alarm indication,alarm level showing clearly ,suitable to use at night . NO TOUCH DESIGN? Non-contact fish-mouth type air blowingopening design, without mouthpiece,It can be measured by blowing air without direct contact. It is more hygienic, convenient and fast.Sensor Type: Fuel Cell. Upper Temperature Rating: 50 Degrees Celsius. Operating Humidity: 0-95 percent. Alarm: Audible. Item Weight: 400 Grams. Item Dimensions LxWxH: 13.39 x 3.94 x 5.12 inches. Power Source: Battery Powered. Brand: WeGoIOT. Date First Available: April 23, 2021. Best Sellers Rank: #492,433 in Health & Household. Customer Reviews: 5.0 5.0 out of 5 stars 2 ratings 5.0 out of 5 stars. : B093BH1THT. Batteries Required?: ?Yes. Batteries Included?: ?No. Product Dimensions: ?13.39 x 3.94 x 5.12 inches. Item Weight: ?14.1 ounces. Manufacturer: ?WeGoIOT. Sensor Type: ?Fuel Cell. Upper Temperature Rating: ?50 Degrees Celsius. Operating Humidity: ?0-95 percent. Alarm: ?Audible. Item Weight: ?400 Grams. Item Dimensions LxWxH: ?13.39 x 3.94 x 5.12 inches. Power Source: ?Battery Powered. Brand: ?WeGoIOT.