M037990EBattery Replacement for Transmitter 18 Battery Replacement for TransmitterBattery Replacement for Transmitter1. Battery Replacement TimingReplace the batteries in the following cases.(1) When the power LED of the transmitterflashes.(2) When the alarm (which has a “two-tone”sound) sounds while the motion selectionswitch is operated.The power LED also flashes in this case.2. How to Replace Batteries[NOTE] Inserting the batteries incorrectly for plus(+) and minus (-) may cause a liquid spill,ignition, heat generation, and burst.Insert the batteries according to thedirection plate. If the battery cover is loosely fixed, watermay enter inside and cause a problem.Fasten the fixing screw securely.1. Open the batteries cover and remove theold batteries.2. After replacing the new batteries, close thebattery cover and fasten the fixing screw. Use four AA-size batteries. Do not mix any old or different types.M22675ETwo-tone AlarmPower LED(Flashing)M22372EFixing screwBattery coverAA-size batteryDirection plate