Omron hem-412c User Manual

1. Slide the battery cover off in the 

direction of the arrow.

2. Install 4 “AA” size batteries so 

+ (positive) and – (negative) 
polarities match the polarities 
of the battery compartment as indicated.

3. Replace the battery cover.

4. If the Low Battery Indicator appears 

on the display, replace all four batteries. 
Long-life alkaline batteries 
are recommended.

5. Remove the batteries if the monitor will 

not be used for an extended period of time.