6
Preparation
longest life, we recommend RadioShack alkaline bat-
teries.
Warning: Dispose of old batteries promptly and prop-
erly. Do not burn or bury them.
Cautions:
• Use only fresh batteries of the required size and
recommended type.
• Do not mix old and new batteries, different types
of batteries (standard, alkaline, or rechargeable),
or rechargeable batteries of different capacities.
• Always remove old or weak batteries. Batteries
can leak chemicals that can destroy electronic
parts.
Notes:
• If you expect to use the remote sensor in temper-
atures below –4
°
F (–20
°
C), we recommend you
use lithium batteries in the remote sensor.
• Install batteries in the remote sensor first, then in
the main unit, to give the main unit time to find
the sensor’s signal.
