console.
Install a fresh set of batteries
in the remote sensor. For cold
weather environments, install
lithium batteries.
Make sure the remote
sensors are not transmitting
through solid metal (acts as
an RF shield), or earth barrier
(down a hill).
Move the display console
around electrical noise
generating devices, such as
computers, TVs and other
wireless transmitters or
receivers.
Move the remote sensor to a
higher location. Move the
remote sensor to a closer
location.
Allow up to one hour for the
sensors to stabilize due to
signal filtering. The indoor and
outdoor temperature sensors
should agree within 2°C/4°F)