skip to Main Content
Technical support

Alcohol Tester working Principle ?

Detect and analyze the alcohol concentration in the exhaled breath of the human body via alcohol sensor.

Which breathalyzer is best for me?

It depends on the application. Please review our Comparison Chart and Selection Guide to determine which model is best for your personal or workplace needs.

What is the difference between a semi conductor sensor and a fuel cell sensor?

Semiconductor Sensors commonly use a tin-oxide substance and are more economical. They are commonly used in Alcohol Screening Devices. Fuel Cell sensors commonly use platinum metal and are higher cost.

How accurate are breath alcohol detectors?

Every alcohol detector has a margin of error.  However, it’s safe to say that the greater the price, the greater the accuracy and specificity.  For more information about the types of units available, compare our products in our Comparison Chart.

Do alcohol detectors have to be calibrated?

Over time, all alcohol testers need to be recalibrated or have the sensor replaced. Calibration is a process where you program the internal software so that it can gauge specific BAC levels. If the sensor becomes saturated, then the results can become skewed. This is because the unit was originally calibrated when the sensor was unsaturated. This process is sort of like winding a clock. When the clock is first set it displays accurate time. However, over time the clock gradually drifts a few minutes, and eventually can be off by quite a bit if you do not occasionally reset the clock. When selecting an alcohol tester, it is imperative to select a unit that is capable of being calibrated.

When to Get your Alcohol Tester Calibrated?

If your breathalyzer is providing inconsistent test results, is not providing any test results, or provides unusually high or low test results, the product should be calibrated immediately by a trained professional. Not calibrating the unit per the suggested time frames can harm the sensor.

We recommends that you calibrate your Pro Grade breathalyzer at least every 12 months, while the non-Pro Grade units may need servicing closer to every 6 months; depending on the performance you observe and require. If the breathalyzer is used every day, it may need to be calibrated more frequently.

It’s also worth remembering that if a breathalyzer isn’t used for a period of time—say, 4-5 weeks—the sensor can dry out. We suggest that even if you don’t plan on using your breathalyzer for a while, turn the unit on and breathe into it at least once a month in order to keep the sensor in good working condition.

If you have a question about how your breathalyzer is behaving contact Our Customer Service.

Test notes:

— When after drinking, it is recommended to last after 20 minutes, it is because 20 minutes is approximately for alcohol to be absorbed into blood from the digestive organs, and residual alcohol remaining in the mouth takes this long to dissipate.

— For accurate result, do not repeat next testing within 3 minutes after last time.

— Do not smoke and eat for 20 minutes prior testing.

— Do not use chemicals to clean the tester directly.

— Do not blowing liquid into the breath pipe.

— Do not use any excitant substances near the tester, such as paint, insecticides, alcohol.

— Do not place the tester in the closed environment with contaminated air.

— Modifying or tampering with the unit’s internal components may cause a malfunction.

— The unit is designed to be used as an aid to promote reasonable driving. It should not be used in anticipation of the use or operation of vehicles, machinery, or equipment. The unit makes no references whatsoever to blood alc0hol content or other such measures of intoxication promulgated by government, medical or other agencies or bodies.

Back To Top