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Simarine Combo Shunt Modules SC303/SC503

Our NSW Rep Westy takes us through some of the viewing features of the Simarine monitoring system via the Simarine App available for use with iOS and Android devices. A Polaris head unit has been installed in our 2019 Hilux Dual Cab which allows for Android Apps to be directly installed on the unit. The head unit is then WIFI linked to the Simarine in the canopy of the vehicle allowing all of the data to be shown in the Cab of the Hilux.


Innovative combination of Shunt and Tank/Temp level module. The SC303 & SC503 are an active combo shunt for PICO battery monitor with;

  • 2 x Voltage Inputs
  • 2 x Tank Level or Temperature Inputs
  • 1 x Socket for Temperature Sensor with JST connector
  • 1 x Current Sensor up to 300A (SC303) or 500A (SC503) for up to 75V systems.

It can be used for monitoring current draw of heavy consumers (inverters, bow and stern thrusters, anchor winches) and current generators (shore power chargers and solar panels). Additionally, it allows monitoring tanks for fuel, fresh and grey water.


Free SIMARINE Android and iOS Apps:

Simarine offers a free App to connect your PICO display to your smartphone via Wi-Fi. The Apps allow you to monitor all battery and tank data, upload history, edit and restore settings and even upgrade the firmware with new features.


ModelSimarine Combo Quadro Shunt Module
SI-SC303300A Active Shunt
SI-SC503500A Active Shunt
Voltage Range6-35V
Temperature Range-20 - +70°C
Power Consumption at 12V
Current Measuring Range
Per Channel - SC3030.01 - 320A
Per Channel - SC5030.01 - 700A
Accuracy± 0,6 %
Resolution0,01 A
Sampling rate100 ms
Maximum Current
Continuous - SC303300A
Continuous - SC503500A
Peak current (<1 min) - SC303400 A
Peak current (<1 min) - SC503700A
Peak current (<5 min) - SC303700 A
Peak current (<5 min) - SC5031000A
Voltage drop at 300 A50 mV
Maximum Voltage on Connections35V
Voltage Inputs
Sampling Rate100ms
Resistance inputs
Range0 Ohm - 65kOhm
Accuracy ± 3.0%
Temperature Sensor – NTC 10k
Range-15 – +80 °C
Accuracy (-10 – 60 °C, 14 – 140 °F)± 3.0%
ConnectivityUp to
Temperature Sensors3
Voltage and/or Resistance Sensors2
SiCOM RJ9 Sockets2
Installation and Dimension
Dimensions (length x width x depth)120 x 120 x 60 mm
Battery ConnectionM 10 bolts

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