About RDP Electrosense
RDP Electrosense is the North American office of RDP Electronics Ltd, an independent, privately owned UK manufacturer of measurement transducers and instrumentation founded in Wolverhampton, England, in 1966. The Pottstown, Pennsylvania office has handled US and Canadian sales and support since 1982.
RDP was one of the early producers of LVDTs (linear variable differential transformers) and says it was the first to build the signal-conditioning amplifier into the LVDT body. That heritage still defines the company: displacement sensing first, supported by load cells, pressure transducers and the electronics to condition and display their signals.
What RDP makes
The displacement range stretches from sub-millimetre gauging probes to long-stroke sensors. Stainless D5 and D6 LVDTs cover general industrial work, GT probes serve inspection fixtures, and internally amplified DCTH, LDC, DCV and DCC models run from DC power and deliver voltage or 4–20 mA directly.
Where conditions get difficult, RDP has specific answers. The D5W, ACW and DCW are sealed for submersion, and welded 316 stainless SSA and SSD units are designed for long-term seawater immersion beyond 2 km. LIN and PY differential-inductance sensors carry no internal electronics and operate from −220 °C up to 600 °C in high-temperature variants, with some models tolerating radiation up to about 1 GGy.
Rounding out the line are strain gauge load cells from about 250 g to 2.2 MN, gauge, absolute and differential pressure transducers, S7 panel-mount and DR7 DIN-rail amplifiers, E-series indicators and the Modular 600 multi-channel rack.
Why engineers specify RDP
- Contactless sensing. An LVDT’s core never touches its coils, so the sensor does not wear and resolution is effectively unlimited.
- Environmental range. Options span cryogenic to 600 °C, vacuum to high pressure, deep seawater and high radiation.
- Matched systems. Sensor, amplifier and display can come from one supplier and be calibrated together.
- Adaptable designs. RDP will modify a standard product when a catalog sensor falls short.
- Quality system. RDP operates under an ISO 9001:2015 certified quality system.
Local support from Vaughn Associates
Displacement, force and pressure measurements run through Huntsville aerospace test labs, Southeast automotive test rigs, and power generation and process plants along the Gulf Coast. Vaughn Associates helps engineers choose the right RDP sensor, stroke, output and conditioning for each of these settings.
We review mounting, environmental and signal requirements, coordinate quotes and technical questions with RDP, and follow through after the order. Vaughn covers RDP in every territory, with North Carolina the only covered state in our North Carolina, Virginia, Maryland and D.C. territory.
Request application help, explore LVDT and displacement sensors, load cells and force sensors or pressure transducers, or find your local rep.







