When the device has not detected a breath for 45
seconds, the screen will turn amber, sound a 3-beep
sequence and the text “No Breath” will flash on the
screen. If the device does not detect a breath after
an additional 15 seconds, the device will beep once
and switch to Continuous Mode. While in this
condition, the breath detection icon on the top of the
screen will turn red. The device will check for
inspiration for 20 seconds every 15 minutes. If a
breath is detected, the device will return to the last
Pulse Mode setting. If no breath is detected, the
device will stay in Continuous Mode and check for
inspiration every 15 minutes. The device will return
to the last Pulse Mode setting at next power up or if
the power source is changed.
When oxygen levels drop below 85% for 60
seconds, the screen will turn amber, sound one
beep every 30 seconds and the text “ALERT Low
Purity” will flash on the screen.
Pushing the Power button once momentarily
silences the alert.