On screen symbols
      Back to home
      1. Help Centre
      2. ToxCO
      3. On screen symbols

      Hour Glass On ToxCO

      Why does my ToxCO have an hour glass symbol?

      ToxCO-hourIf the device is zeroing before calibration, you should allow your device to zero in fresh air until the next screen is displayed.

      If the device is zeroing before taking a test then allow the device to zero in fresh air until the 15 second timer has started. 

       If the problem persists or has not been resolved by the information provided above, please contact your local distributor for more information. Find out who your local distributor is from our website here.