A second pair of back sensors is included with your Dreem product. To replace your back sensors:
1. Remove existing electrodes by sliding them out, as illustrated below:
2. Remove the second set of sensors from the box of replacement accessories.
3. Insert the new back sensors. Make sur that the strap is positioned under each back sensor.
4. Check that the elastic can be pulled easilly
Caution: Repair and/or replacement must not be attempted with any other part of the headband. Any attempt to repair, replace, or otherwise alter the general function of the headband will render the warranty void.