OPERATING MANUAL ERS
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Installation
1. Remove the back panel of the sensor with a small
screwdriver.
2. Install the batteries. The ERS requires one or two AA
batteries. The battery type is 3.6V Lithium Battery
(ER14505). You can use one battery. For the ERS-
CO
2
and ERS-Sound we recommend two batteries to
get maximum operation time. Use battery slot A if only
one battery is used.
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