User's Manual
27
Handheld Pulse Oximeter
Problem Possible Cause Possible Solution
Segments of the SpO
2
 or 
pulse rate displays are 
missing.
Defective LED 
displays.
Displayed values may not 
be reliable; discontinue 
use of the oximeter. 
Disruption in the oximeter 
performance.
Electromagnetic 
interference (EMI).
Remove the oximeter from 
the EMI environment.
Red light battery indicators 
appears accompanying 
the message displayed on 
LED as shown below:
The batteries are low.
Replace the batteries.
The message display 
shown” E01”
Probe fail Replace the Probe 
If you have followed the actions recommended above but the problem keeps 
unsolved, please contact your local dealer for assistance.










