Decision aid
For example, what you should pay attention to and what is important:
Accuracy
The standard rule is the more expensive the alcohol tester the more accurately it will measure, all our devices have a maximum deviation of 0.05% or less.
Speed
Depending on the type of sensor, it may or may not be able to register a new alcohol measurement faster, in short, with expensive devices you hardly need any time between different tests.
Brand
Depending on the brand and type, the devices have certain unique features, for example, some devices have a measurement history, calibration reminder, etc.
Purposes
First ask yourself what you want to use the alcohol tester for, in other words how high-performance should the device be? How many mouthpieces will I need?