Spooky Biofeedback determines the body’s response to applied frequencies. At times these frequencies interfere with the sensitive electronics built into Spooky Pulse. Spooky can filter out most of the unwanted signals, but occasionally there are too many to filter out, and an error message is reported.
Data is regarded as erroneous if the HRV is greater than 20 between 2 heartbeats. If the error message is reported Spooky will disregard the data but will automatically recover on the next heartbeat. An option in the Advanced Menu can double this tolerance.
We strongly recommend people to relax when using Spooky pulse for biofeedback scan.