LE3/LE4 Spit-Trap Non-return Valve Mouthpiece – hygienically individually wrapped for safe use.
These spit-trap non-return mouthpieces are for use on both LE3 and LE4 professional alcohol testers.
The spit-trap non-return design ensures not only a correct test sample is delivered but that the sample chamber is kept clean of contaminants. This design feature also ensures the integrity of subsequent test results.