iOS devices are experiencing module calibration issues. The new update (with fix) will hit the App Store in week 38. Apologies for the inconvenience. 

E-Temperature

Maintenance

Cleaning

The E-Temperature can be cleaned with a damp cloth. Make sure that the inside does not get damp.
Once the back of the module has been removed to replace battery, corrosion on the inside is more likely. 

Updating systeem

It is important to regularly check for updates to the software. Click here for more information on Updating the Starter Package Basic or Plus.