EDAN H100N - 3 Oximeter Operation; Powering On the Oximeter

H100N Pulse Oximeter User Manual Introduction
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Battery Installation
To install the alkaline batteries:
1. Make sure the oximeter is turned off.
2. Press the battery compartment latch and remove the
battery access door.
3. Place four AA batteries as shown in the following
figure, first push it oriented as shown in ①, then press it
oriented as shown in ②.
4. Install the battery compartment cover.