Recalibration for breathalyser

The ALERT™ J5 and then DRIVESAFE™ exec breathalysers must be recalibrated annually. Your device will give you a reminder when you need to get your breathalyser calibrated to ensure the device stays reliable and accurate.

Please note: the limits in Scotland and Northern Ireland (NI) are currently stricter than in England and Wales. Therefore, please, specify with your order if any device is required for use in Scotland and NI.