NEC LT81 - Manual (Page 43)

83
Remote Control Battery Installation
1. Press firmly and slide the battery cover off.
2. Remove both old batteries and install new ones (AA). Ensure that you have the batteries' polarity
(+/–) aligned correctly.
3. Slip the cover back over the batteries until it snaps into place.
MAINTENANCE 84
Operating Range
Range of 360˚ and a distance of 23 feet (7 m) from the remote sensor.
30˚
30˚
Operation distance
of 23 feet (7m)