Removable air intake nozzle.Safe, hygienic and easy to carry,Made of PP food grade materialAdopt precise gas flow design,Instrument level circuit design,Results in 3 secondsOperation steps and test results,Beep prompts, simple and clearEmergency LED lighting,Find in darknessSpecifications:Name: Digital Display Alcohol Breath TesterVoltage:4.5V (v)power supply:3*AAA batteries (1.5V)(Not included) time:10 (s)reaction time:10 (s)Measuring range:0-200mg/100mLColour:As ShownMaterial:ABSPackage Contents:1 * Tester1 * English instruction manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.