Suitable for use with the Drager Alcotest 3820 and the Alcotest 4000 breathalyser device.
Drager Alcotest Mouthpieces for the 3820 and 4000 (Pack of 5)This pack of 5 mouthpieces are for use with the Drager Alcotest 3820 and the Drager Alcotest 4000 breathalyser devices. The are hygienic and come individually packaged until ready to use. A new mouthpiece should be used per test subject and the mouthpiece should intuitively click in to place on the alcohol detector. The test subject should breath through the mouthpiece and the air will pass over the device, with a small amount being drawn for a sample. This is designed so that there is residual alcohol inside the device and the results will accurate and reliable.
