VDO Gauges Sending Units

Why VDO Sending Units Belong With Your VDO Gauges

A gauge is only as accurate as the signal it receives. That's the core principle behind VDO Gauges' line of sending units — purpose-built sensors and senders engineered to work in precise harmony with VDO instrumentation. Whether you're monitoring oil pressure on a high-revving engine, tracking fuel levels in a custom tank, or keeping tabs on coolant temperature during a long haul, using a matched VDO sender is the single most important step toward getting a reading you can trust.

VDO's history as an instrumentation brand stretches back to its founding in Frankfurt, Germany, and the company has spent decades refining the relationship between gauge and sender. Because different gauge brands use different resistance ranges, mismatched senders can produce dangerously misleading readings — for example, a low oil pressure condition could display as high pressure on a gauge calibrated for a different sender's resistance curve. VDO eliminates this guesswork by engineering senders and gauges as a matched system.

A Sender for Every Critical Reading

VDO's sending unit lineup covers the measurements that matter most to automotive enthusiasts, marine operators, and performance builders alike. Key types include:

• Oil Pressure Senders — Available in 80 PSI and 150 PSI ranges, with standard 1/8"-27 NPT threads and integrated warning contacts that trigger a dash warning light at dangerously low pressure thresholds (typically around 7–11 PSI).
• Fuel Level Senders — Constructed from high-quality materials, some models are adjustable for tanks from 6 to 32 inches deep and accommodate left- or right-hand float mounts, making them adaptable to a wide range of custom and OEM fuel tank configurations.
• Temperature Senders — Designed to pair with VDO water temperature and oil temperature gauges across standard automotive operating ranges.
• Freshwater Level Senders — Purpose-built for marine and RV applications, these come complete with a flange, washer, and necessary mounting hardware for straightforward installation.

Features That Set VDO Senders Apart

VDO sensors are engineered with real-world installations in mind. Optional features across the lineup include floating ground capability for installations where grounding to the engine block isn't practical, integrated warning contacts to drive dashboard warning lights or audible alarms without additional switches, and dual-station (twin gauge) capability for setups where two gauges need to share a single sender — a common need on twin-engine boats and commercial vehicles.

This engineering depth is a direct reflection of VDO's reputation as an OEM supplier to automobile manufacturers worldwide and a preferred choice among performance builders competing in events sanctioned by the NHRA, IHRA, and major street rod organizations. Every sender in the lineup is built to the same standard of precision that made VDO instrumentation trusted at the factory level for decades.

Browse the full selection of sending units above, or explore the complete range of VDO Gauges products to build out a fully matched instrumentation system for your vehicle, boat, or custom build.