Question about 3M Littmann Master Cardiology Stethoscope 22"
Most ekgs need a strong battery even when operating on AC power. Replace the battery and that should fix the problem.
Posted on Jun 16, 2009
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Posted on Jan 02, 2017
SOURCE: low battery
When your dealing with a low battery message you can do many things like the following:
1- Replace the battery.
2- Check the voltage of the battery with a multimeter.
3- Disconnect the unit from the AC source and check if the unit continue functioning without the AC source.
Posted on Dec 05, 2009
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