* NF Breathalysers for France Alcohol Breath Test Twin Pack * Blood Test Accurate, Alcohol Breathalyzer Testing Kit * Accurate Reliable Results in 4 Minutes EU French Certified European * Unique Certified Crystal Formula, Average Expiry Date 2 Years * For French Police You Must Carry at Least Two Breathalyzers Included in this Kit Accutest 2 x Disposable Alcohol Breath Test Kit, Blood Test Accurate Crystals with Results in 4 Minutes. Easy to use one step alcohol test: SNAP Squeeze the middle of the tube between your thumb and finger until you feel the inner casing snap. : Blow Hold the tube vertically. Take a deep breath and blow firmly into the tube for a minimum of 12 seconds.