This monitor includes a built-in Check-with-Confidence feature provides
accuracy assurance function, which enables the device to automatically
perform a self-check. It provides a convenient way to ensure the monitor
is working properly.
The Check-with-Confidence default setting is "ON." To turn this feature
"OFF," press the "START/STOP" button for 3 seconds.
On first use, then on every 30th use, the cuff will partially inflate and then
deflate. The monitor will display "OK", confirming the monitor is working
If the monitor is not working properly, "Err" will be displayed on the screen.
Please call Consumer Relations at 1-800-466-3342 for further assistance.
If the "MEM" and "START/STOP" buttons are pressed at the
same time, erasing the values in memory, the monitor will perform the
self-check feature on the next measurement.