Personal Keychain Breathalyzers for Your Car Keys
These products mostly use a semiconductor-based sensing technology but a few are already adopting the electrochemical fuel cell system used by law enforcers. The common breath used by consumers are generally cheaper and less accurate. Most of the keychain breath alcohol analyzers don’t even go above $10. However, those that use the fuel cell are a lot more expensive and accurate.
Some keychain breathalyzers are disposable and should be thrown away after each use. Those that are not disposable, on the other hand, should undergo regular recalibration to provide better results than they would give if not properly maintained.
Tags: breathalyzers in car keys, keychain breathalyzers