4
SETUP
Set the A-B-C Switch
The A-B-C switch is located inside
the battery compartment. It can
be set to A, B or C. However,
you must select the same letter
choices for both the sensor and
the clock in order for the units to
synchronize.
Install or Replace Batteries
AcuRite recommends high quality
alkaline or lithium batteries for
the best product performance.
Heavy duty or rechargeable
batteries are not recommended.
The sensor requires lithium
batteries in low temperature
conditions. Cold temperatures
can cause alkaline batteries
to function improperly. Use
lithium batteries in the sensor for
temperatures below -20ºC/-4ºF
1. Slide off the battery
compartment cover. Take
note of the A-B-C switch
setting inside the battery
compartment for clock setup.
2. Insert 2 x AA batteries into
the battery compartment, as
shown. Follow the polarity
(+/-) diagram in the battery
compartment.
3. Replace the battery cover.
Sensor Setup
2
1
1
A-B-C Switch
set to match
clock
2
Install Batteries
2 AA batteries
A B C
F
C
20 C
158 F
70 C
158 F
70 C
