internal
____________________
the
page
____________________
the
____________________
button
compass
sighting
____________________
lcd
____________________
external
____________________
and
data
____________________
with
alignment
____________________
power
/
data
____________________
cover
____________________
zoom
in
/
out
____________________
the
____________________
button
battery
____________________
cover
carry
____________________
slot
____________________
sensor
____________________
