Wilcoxon Sensing Technologies, founded by former Naval Research engineers and inventor of the first underwater accelerometer, builds rugged piezoelectric and 4–20 mA loop-powered industrial accelerometers and velocity sensors, intrinsically-safe and explosion-proof variants, MIL-STD-901D submarine-qualified naval accelerometers, hydrophones and online condition-monitoring systems for the U.S. Navy, power generation, oil and gas, mining and heavy industry.