This sensor comes pre-calibrated before we send out to you! Change sensor by yourself in 20 seconds! Or send to us and we’ll gladly do it for you.
All breathalyser sensors will vary after long periods of time, and just like a clock… will drift eventually.
Only quality alcohol breathalysers can be calibrated. It’s reccomended to use this replacement sensor after 6 months of use.
Sensor comes with full instructions to replace by yourself… in under 20 seconds!