Insert 2 x AA batteries with correct polarity ("+" and "–" marks). Close the battery compartment cover.
When you insert the batteries, all icons on the LCD will light up for 3 seconds, and you will hear a beep tone, then indoor temperature will appear.
The base station will start to make a connection to the outdoor sensor. This operation takes about 3 minutes and will display by a flashing reception
RF antenna symbol in the "OUTDOOR" display area on the receiver.
Open the outdoor sensor battery compartment cover and insert 2 x AA batteries with correct polarity ("+" and "–" marks). Close the battery
compartment cover.
After the station has created a connection to the outdoor sensor, it will enter the DCF77 time reception mode 3 minutes later.