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Note: If pairing unsuccessful, all previously paired Bluetooth devices around should be disconnected or turned off first, in order to avoid making any auto reconnection between them. Then, set this unit to Bluetooth mode, and tap the Bluetooth switch on your phone/device off and back on again to refresh/ search any nearby "ER100" for pairing.
If you want to disconnect this unit from your Bluetooth enabled device after pairing successful, press and hold the “BT PAIR” button for 2 sec. To reconnect this unit, just select "ER100" again from the Available/Paired device list.
1. The lithium backup battery needs replacement when the LOW BATTERY indicator 
flashes, otherwise, the time and alarm settings will be lost/reset after a power outage.
2. Leave the AC adapter connected to your AC outlet to retain memory while the original battery is removed.
3. Unscrew the battery holder from the cabinet with a small screwdriver and insert a new battery with the same CR2032 (3V) or equivalent type into the holder the same way, observing the positive (+) polarity before sliding the holder back into the slot. The LOW BATTERY indicator should then be Off.
20190625
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