We're doing maintenance Friday 5pm Pacific time to Sunday afternoon. During that time, credit card checkout and adding new addresses will be disabled.
The proprietary electronics inside the Perfect Fit™ EFM attenuates the signal and has noise-canceling features to further improve the signal quality. True paradoxical breathing is easily scored, and the sensitivity of the Perfect Fit™ EFM enables detection of respiratory effort-related arousals (RERAs).
The color coded connectors on our Perfect Fit™ Effort Belt and EFM Interface Cable ensure accurate setup. The sleep specialist does not need to change any batteries in the Perfect Fit™ EFM, eliminating concern for sleep study interruption due to battery failure.