Will Kardia products work near high voltage sources?

No. Refer to the Electrical Safety section of the User Manual. The KardiaBand is intended for use in a hospital, domestic, and low-voltage commercial environment. Specific guidance for use near radio frequency electromagnetic equipment is printed in the Electromagnetic Immunity section.

The electric field created by high voltage and high current lines can disrupt the KardiaBand sensor. We also recommend following any guidance by the Apple Watch manufacturer, and your smartphone. We are intended for use in an electromagnetic environment up to 30 A/m power frequency magnetic field strength, per IE 61000-4-8.