Portable Breathalyzer, Direct Blow, no Need to Change Mouthpieces,Digital Blue LCD Display with Illuminated Light for Personal and Family Gatheri

Portable L3.55W1.77H0.78IN Weight0.14IB easy to carry can be easily put into your purse or pocket. Suitable for weddings parties and other social events to ensure safe driving after drinking.Simple operation just insert 3 AAA batteries batteries are not included in the product click the power button to start then press the middle button to enter the alcohol test mode wait for 10 seconds to complete the appointment blow "drop" within 6 seconds to enter the blow test and the test result will be displayed in light color on the LCD screen of the alcohol tester.Non-contact detection Get rid of the traditional contact detection non-contact blowing detection direct blowing no need to replace the mouthpiece clean and hygienic to avoid interactive infection.Lighting The product contains a lighting function in the off state press the on button twice consecutively the emergency lighting turns on. Press the on button again the lighting turns off. It is convenient to use as a flashlight in emergency.Usage method1. When using for the first time please prepare three 1.5V AA dry batteries of No.7 remove the battery cover install the battery cover and then use the battery cover. 2. Press the power button.3. "Preheat" 110 seconds start the preheat countdown 10 seconds please wait for the preheat time. 4. After the preheating is completed it automatically enters the blow detection countdown for 6 seconds. Wait for test results to be displayed.5. Set the display unit After completing the operation in 2.3.4. press once to switch the next measurement display unit within 5 seconds after the display result appearse.g. BAC - US g1 - European mgl BrAC - Japan.6. Press the power button twice in the shutdown state to turn on the emergency LED light Short press the button when the light is on to turn off the emergency LED light.AttentionThe first time the breathalyzer is taken out of the package or when it is not used for a long time a large amount of gas and other impurities can attach to the sensor. In this case you need to press the power button several times to clean the breathalyzer by preheating it.