• Never fail to turn off the power of the detector before replacing the batteries.
• Replace the batteries in a safe place.
• Replace both of the two batteries with new ones at one time.
• Pay attention to the polarities during replacement. Replace while checking the battery polarities
stamped on the body.
• If the battery cover is not completely locked, the dry batteries may become dislodged or water
may get in through the clearance. Water may also get in if a minute foreign substance is caught
between the detector and battery cover.
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