NMEA 2000 Engine Monitoring Unit

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Years Warranty
Official Distributor


The Actisense EMU-1 is a specialized analogue to NMEA 2000 Gateway which converts data from analogue engine gauges/senders into NMEA 2000 data. The EMU-1 enables the sharing of engine data throughout the NMEA 2000 bus. It digitises analogue engine sensors, enabling NMEA 2000 display devices to monitor the connected engine(s) on a vessel.

The EMU-1 can monitor vital engine parameters such as temperature, pressure RPM and fluid levels from up to two engines.


  • Input supply voltage : 9-35V DC
  • Nominal voltage : 12V
  • Consumption : < 25 mA @ 12V DC
  • Connectivity : NMEA2000
  • NMEA2000 outputs : Yes
  • Data transfer/conversion : Analogue to NMEA2000
  • Analogue input type : Resistive (Ω)|Voltage (V)
  • Resistive signal inputs (Ω) : 6x
  • Voltage signal inputs (V) : 6x
  • Signal voltage range : 0-35V
  • Alarm inputs : 4x
  • Integrated features : Engine hour meter
  • Connector type : Micro-C (NMEA2000)
  • Dimensions : 127mm(L)x112mm(W)x48mm(H)


  • Enables analogue signals to be converted to NMEA 2000 messages
  • Convert signals from up to two engines (that share a common ground) with a single EMU-1
  • 6 gauge / parameter inputs
  • 4 alarm inputs
  • 2 additional auxiliary inputs
  • 2 Tacho inputs
  • Customised IP65 case
  • Diagnostic LED’s
  • Wide power compatibility of 9 to 35 Vdc


  • No need to change an existing engine
  • Easy installation
  • Easy to configure to suit the connected engine
  • Connect signals from fluid level gauges (that share a common ground with the engine) to NMEA 2000®
  • Optional DIN rail mounting kit available
  • Total engine hours are logged by the monitoring of engine Tach (RPM) input

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