Confirm you have a genuine Apple audio adapter. Do not use adapters from other sources even if they say they are compatible. They are not. Use the  link below to purchase a genuine Apple audio adapter if you need one.  


https://www.apple.com/shop/product/MMX62AM/A/lightning-to-35-mm-headphone-jack-adapter


Adapters are optional for device that include the built-in audio jack found on older phones like iPhone SE and all iPads. See Connecting Your Device and Overnight Monitoring for more information.


Condition or Message

Possible Cause

Recommended Solution

Finger not found Incorrect finger placement

Damaged sensor

Reposition finger

Inspect sensor, discontinue use if damaged
No microphone permission The iOS permission to use the microphone is not enabled

Update device permissions to enabled microphone access for Kenek Sleep app

Noise detected Not a Kenek sensor connected to your device

Defective device audio port


Defective Lightning Port Adapter

Defective splitter or cable



Damaged sensor


Environmental influences
Insert Kenek sensor


Inspect audio port for damage or debris, have device serviced

Replace with genuine Apple accessory

Remove protective case, remove all splitters and extension cables, ensure all connections are secure

Inspect sensor for damage, discontinue use if damage present

Avoid direct light, move inside
Low circulation Incorrect finger placement

Low blood circulation to finger


Improper sensor fit


Irregular heart rhythm

Excessive motion

Environmental influences
Insert finger fully into sensor clip

Warm finger, use a different finger, reposition arm to improve blood flow

Adult sensors are designed for users 100 lbs or greater

Consult physician

Minimize motion

Avoid direct light, move inside
Sensor not detected Sensor connection not fully seated


Defective Lightning Port Adapter

Damaged sensor

Remove protective case, remove all splitters and extension cables, ensure all connections are secure

Replace with genuine Apple accessory

Inspect sensor, discontinue use if damaged