
4. BATTERY INSTALLATION / REPLACEMENT
4.1 The Main unit is powered by 6pcs alkaline batteries LR20 1.5V, install and replace
battery as followings:
Remove the screws in rear battery-case (see Fig. 3-1/2/3/4).
4.2 With low battery warning function, if main unit beep every 20 seconds, that
indicates you to replace the battery with new ones.
Keep in mind: It is important that do not let the rubber washer come off.
5. OPERATION & CONTROL
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