Apex Digital HT-175 - Manual (Page 7)

REMOTE CONTROL BATTERY INSTALLATION
6
Remove the battery compartment cover.
Load two AAA batteries into the battery
compartment.
Make sure that the batteries have been inserted
properly, matching to the symbols
+, - marked in the battery compartment. Close
the battery compartment cover.
When replacing batteries, replace both batteries.
Do not mix new and used batteries
together, otherwise, battery life will
be much shorter than normal.
Remove the batteries if the unit will not be used
for a prolonged period of time.
The remote control transmits a directional
infrared beam. Be sure to aim the remote
control directly at the infrared sensor of the
unit during operation.
If the sensor has been covered or there is a
large object between the remote control and
the sensor, the sensor will not respond.
The sensor may not able to receive the
remote signal when it is exposed to direct
sunlight or a strong artificial light (fluorescent
or strobe light). In this case, change the
direction of the light or reposition the unit to
avoid direct lighting.
Within approximately
6 meter (20 feet)