Before Your Reading
For reliable results — please observe
No eating (at least 2 hrs before)
No eating
No exercise (at least 30 min before)
No exercise
No smoking (at least 1 hr before)
No smoking
No alcohol (at least 12 hrs before)
No alcohol
No coffee/tea (at least 1 hr before)
No coffee
Put phone away during the reading
No phone
Sit upright and relax
Sit upright
Attach sensor to ear or finger
Attach sensor
The reading takes 90 seconds
90 seconds