VDO SingleViu 52mm (2-1/16") DEF Level Gauge - E/F Scale - 0-5V

The VDO SingleViu 52mm (2-1/16") DEF Level Gauge with E/F Scale and 0-5V input is a precision monitoring instrument designed for diesel engine operators who need real-time visibility into diesel exhaust fluid reserves. Whether you're running a commercial fishing vessel, a trawler, or any modern diesel-powered boat equipped with selective catalytic reduction (SCR) technology, this gauge delivers the situational awareness required to avoid unexpected DEF depletion. Monitoring DEF levels prevents costly engine derate conditions and keeps your vessel operating at full power when you need it most on the water.

This VDO gauge features a classic single-needle analog display housed in a compact 52mm (2-1/16 inch) bezel that integrates seamlessly into existing instrument panels on most marine vessels. The E/F scale (Empty to Full) provides intuitive, at-a-glance readings without confusion, while the 0-5V electrical input accepts standard sensor signals from DEF tanks, ensuring compatibility with modern diesel engine control systems. VDO's reputation for rugged marine-grade construction means this gauge withstands the corrosive salt-air environment, vibration, and temperature swings inherent to professional and recreational boating operations. The compact form factor and straightforward installation make it an ideal upgrade or replacement for aging DEF monitoring systems.

This gauge serves commercial fishermen, charter captains, and serious recreational boaters running late-model diesel-powered vessels with EPA Tier 4 or SCR-equipped engines. It's particularly valuable for extended offshore operations where reliable DEF monitoring prevents mid-trip power loss and emergency service calls. Installation requires a standard 52mm gauge hole and a 0-5V signal source from your existing DEF tank sensor—no complex wiring or programming needed. Verify compatibility with your vessel's current DEF sensor and electrical system before ordering to ensure seamless integration.