Operation Manual

8120 Installation and Operation Manual72
Optional sensors and instruments
External alarms: Lights or sounders in the
boat to sound alarms through the boat (see
section 18-4).
GPS or DGPS antenna: For GPS navigation,
see section 18-5.
Sonar transducer: For depth sounding and
fish finding, see section 18-6.
Fuel sensors: For fuel functions. The
Instrument can use these optional fuel flow
sensors, fitted to one or two engines:
• Navman petrol/gasoline sensors (see
section 18-7)
• Navman diesel sensors (see section 18-8)
• SmartCraft fuel sensors (see section 18-10)
DSC VHF radio: Tracks other boats with
GPS receivers and DSC radios and displays
barometric pressure (see section 18-9).
SmartCraft: With one or two SmartCraft
capable Mercury petrol/gasoline engines,
the Instrument can display engine data and
trim and can control troll speed (see section
18-10).
Other instruments: The Instrument can
receive data from other instruments and send
data to other instruments by NavBus or NMEA
(see sections 18-11 and 18-12).
Please consult your NAVMAN dealer for more
information.
• Replacement paddle wheel.
• C-MAP™ NT-MAX, NT+ or NT chart SD cards.
• NAVMAN NavBus junction boxes simplify wiring, particularly if several instruments are
connected. For more information, see the NavBus Installation Manual.
18-2 Installation: Options and Accessories