- Please make sure you are not in a high electromagnetic radiation environment like close to cell phones or functioning microwave.
- Please make sure that the forehead is free from sweat or moisture. Do not measure when sweating, please keep skin dry for 30 minutes before measuring.
*credit to Sylvain of iHealth Labs EU
https://helpcenter.ihealthlabs.eu/hc/en-gb/articles/360007268218-iHealth-PT3-Big-changes-in-continuous-measurements