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A tachometer is an instrument which measures the working speed of an engine, typically in revolutions per minute (RPM). It is commonly used in cars, boats, planes, and other vehicles. Most tachometer gauges have either an analog (dial) or digital (LCD or LED screen) display.

Diesel Exhaust Fluid, better known as DEF, is a chemical compound known for neutralizing nitrous oxide (NOx) emissions that would otherwise be harmful to the environment and people. Nitrogen oxides contribute to the formation of smog and acid rain, they affect the tropospheric ozone. 

Diesel exhaust fluid (DEF) is a non-hazardous solution used within a selective catalytic reduction (SCR) system to break down harmful pollutants (NOx) generated by a diesel engine. DEF is 32.5% urea, or aqueous ammonia solution, and 67.5% deionized water. The fluid is sprayed and then spread into the exhaust gas via a mixer before entering the SCR catalyst.

Marine gauges are integral components for any ship or boating vessel. This equipment is the key to monitoring data, such as speed, oil pressure, battery conditions, and much more. By transmitting this information onto an easy to read screen or dial, these gauges allow for the easy operation of waterborne vessels.

NMEA 2000 is the latest version of the NMEA communications standard for marine instruments that allows you to easily install and connect compatible devices within your vessel. Upgrading your boat console and devices to this standard simplifies the device integration process. A fully integrated NMEA 2000 system enhances navigation and provides better access to data.

You are no doubt already familiar with a speedometer gauge, which measures and displays the speed of a boat or vehicle. The device comes standard in motor vehicles and is also frequently seen in the majority of vehicles, boats, and off-road vehicles traveling on roads, waterways, or trails where speed would be vital as it pertains to operation and safety.