• Plug AC/DC adaptor into socket. Make sure the
adapter is not obstructed and is easily accessible
to the unit.
To completely disconnect from power, the adapter
should be disconnected from the main unit.
NOTE The main unit and adapter should not be
exposed to wet conditions. No objects filled with liquid,
such as vases, should be placed on the main unit and
adapter.
Memory backup:
1. Remove the battery compartment cover.
2. Insert the batteries, matching the polarities.
NOTE Batteries should not be exposed to excessive
heat such as sunshine or fire.
REMOTE SENSOR INSTALLATION
1. Slide open the battery door.
2. Slide channel switch to channel 1.
3. Select EU/UK. (RTHN318D only)
4. Insert the battery, matching the polarities (+ / -).
5. Press
RESET after each battery change.
6. Close the battery door.
7. Press and hold
SEARCH on main unit to initiate
search and start receiving time and temperature
data from the sensor.
The sensor reception icon shows the status:
ICONS MEANING
Main unit is searching
for sensor(s)
A sensor channel
has been found and
logged on
No sensor found
NOTE After every sensor initialisation, the main unit
may take up to 30 minutes to receive the time from
the sensor.
8. Secure the sensor in the desired location using the
wall mount hole or double sided adhesive tape.
