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All the digital breathalysers sensors below are quick and easy to fit yourself, and will only work in the corresponding breathalyser.
Changing the breathalyser sensor for a new factory calibrated sensor regularly, is essential to maintain the accuracy of the breathalyser.
Breathalyser sensors should be changed at least very 12 months, or more often if you are doing breath alcohol frequent testing.
AL7000 Sensor-Replacement AL7000 Breathalyser Sensor Module mg/L
Alcodigital Platinum Fuel Cell Breathalyser Replacement Sensor Module