Pack of 20 spare blow tubes for use with AlcoSense breathalysers.
Every time you use a AlcoSense breathalyser you should use a new blow tube to ensure hygenic use and extend the life of the unit. Blow tubes help to reduce the amount of moisture in your breath reaching the alcohol sensor inside the system.
Important: Use only AlcoSense genuine blow tubes. The blow tubes are designed to tight tolerances to ensure a tight fit against the AlcoSense breathalyser. This reduces the amount of air which can escape, therefore increasing the accuracy of your reading.