Ortek Technology Inc WKP3290M ユーザーズマニュアル

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Power Switch 
There is a power switch at back of the keypad. When not in use, please 
turn to OFF to save battery power. 
 
 
Note:  
1.  After 30 minutes non-operation, the keypad will go to low-
power mode. Please press any key to wake up and wait the 
blue LED turn off before using. 
2.  Power ON/OFF also need to press any key to reconnect and 
wait the blue LED turn off before using. 
3.  CAUTION : RISK OF EXPLOSION IF BATTERY IS 
REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED 
BATTERIES ACCORDING TO THE INSTRUCTIONS