Calibration is the process of checking results of the device with results provided in the model template. Through calibration internal settings of the breathalyzer (sensor) are checked and adjusted by comparing and adjusting its test results to a known alcohol standard.
Calibration has to be performed in appropriate conditions (in terms of temperature, humidity, flow force, fixed alcohol content, etc.) and by trained technicians. It is not an easy job. In order to perform calibration technician needs to set a breathalyzer to the calibration mode, it is done with the use of specially designed pin tools. Next it is connected to calibration devices. During this process air in quantity similar to a human exhalation with predefined alcohol content is pumped into it.
Such devices can be found on various auction sites, non-branded stores with breathalyzers etc. These are cheap, disposable devices of doubtful effectiveness. Many Chinese companies sell very cheap breathalyzers that cannot be calibrated due to sensor used. Thus once it is decalibrated, you need to buy a new device. So you not only waste money but also cannot trust its results. Price is not the only factor as some Chinese fakes can cost as much as renowned devices. We saw breathalyzers that produced ridiculous results, as without drinking any alcohol the result was 0.23‰! Or our volunteer had 0.2 and the device showed 0.00. Remember that the alcohol limit for driving in the UK is 0.8‰.
We would also like to turn your attention to various opinions, analyses and tests conducted by some stores. Usually they want to advertise the most profitable products and not the ones with very good results. Thus you need to think twice before choosing a store and breathalyzer that you can trust.
CALIBRATION IN DETECTIVE STORE
Calibration in Detective Store costs 25 GBP (depending on the model). Check our price list.
Remember – drinking under influence may have very serious consequences!
You can lose your driving licence, your health and even life. Be responsible for your actions and the life of others. Test yourself before setting off for a drive.