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The Simrad IS42J offers customisable views of engine status and performance data for up to two J1939 diesel engines. You can view engine speed, load, pressures, temperatures, and alerts, including diagnostic trouble codes, on one clear, full-colour graphical display.
The full-colour display panel is optically bonded to its protective glass covering, eliminating the possibility of internal condensation or fogging. This allows you to view engine data on a wide range of other Simrad gauges and multifunction displays across the vessel, without the need for a separate J1939 gateway or converter.
Simple, waterproof controls make the IS42J easy to use in rough conditions and reliably responsive to wet or gloved hands.
More than a standalone gauge, the IS42J also links your J1939 diesel engines to your boat’s NMEA 2000 network.
The IS42J is simple to install, with one cable to each of your engines and a single connection to your boat’s DC power supply. Sharing engine data with other Simrad gauges or displays is also simple, with industry-standard NMEA 2000 connectivity.
With a dual-engine J1939 gateway built in, there are no separate “black-box” components to install. Plug-and-play adaptor cables are available to suit a wide range of J1939 diesel engines.







