Echowell a3 - EL Back-Light and Altitude Adjust Mode; Altitude Adjust Mode

EN 21
EL back-light
1. The symbol " " will apper to indicate the EL back-light functuon
is at working status.
2. The EL back-light will light 5 seconds after press E button.
ALTITUDE ADJUST MODE
● Under the unit of “m”,
the altitude
adjustment range is
within -499~ +7999.
● Under the unit of “ft”,
the altitude
adjustment range is
within -1599~ +25999
BACK-LIGHT MODE EL LIGHT ON
EL BAC
K
-LIGHT