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Step 1: Insert 5 volt AC adapter into the wall then into the back of the
alarm clock.
Step 2: Insert 2 new quality AAA Alkaline batteries (not included) dated 2026 or newer, into the alarm
clock. Observe the correct polarity.
Restart: If there is no indoor temperature data after 60 seconds, unplug the AC adapter and remove batteries from
the alarm clock, press any button 20 times. After 15 minutes, return to Step 1 above.