If the breathalyser start up or countdown sequence time is taking longer than usual, it could be because:

Possible Cause #1

Battery Power is low

Replace with a NEW set of Alkaline batteries (Do not use rechargeables as the voltage is lower)

Possible Cause #2
Unit requires calibration
If your unit has not been calibrated in the last 6 months, regardless number of us, book your unit in for calibration at https://andatech.caltrace.com

If none of the above applies to your issue, please contact us by clicking on "New Support Ticket" above.