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Nothing Comes Close to a Cobra
®
21
INDEX
Index
A
ASSISTANCE ....................................2
C
Case Size ..........................................7
CONNECTION DIAGRAM ...............13
connection to chartplotter................13
D
Depth Range .....................................7
DIMENSIONS ....................................8
Display Colors ...................................7
Display Vertical Resolution ...............7
E
External Buzzer .................................7
EXTERNAL CONNECTIONS ..........11
F
Fish Finder ........................................6
I
Installation .........................................9
L
LED ....................................................9
N
NMEA Output sentences ...................7
O
Operating Frequency ........................7
Operating temperature range............7
Output Power.....................................7
Over Voltage protection ....................7
OVERVIEW .......................................6
P
package .............................................4
Power Consumption ..........................7
Power Requirements .........................7
POWER SUPPLY ............................12
Q
Questions ........................................16
R
Resolution.......................................... 7
Reverse Polarity protection ...............7
S
Speed Sensor ....................................7
STATUS LED.....................................9
Status LED ........................................7
Storage temperature range ...............7
T
TECHNICAL SPECIFICATIONS .......7
Temperature Sensor .........................7
transducer...................................6, 15
W
warnings ............................................3
Water Proof Specification .................7
Weight ...............................................7