Radiant Instruments’ new Perfect Liquid Probe (PLP), a sensor that mounts on the top of a tank, uses ultrasonic technology to determine the distance between the sensor and the liquid in the tank. It is compatible with almost all liquid types, including gasoline, jet fuel, diesel, and water, according to company officials.

“Our new Perfect Liquid Probe represents a true breakthrough in fuel measurement,” said James Wiebe, CEO of Radiant Technology. “It eliminates problems associated with all traditional fuel probes. It is impervious to changes of fluid types and requires no calibration, other than to set the empty point on your tank.”
Other than two small holes in the top of the tank, no probes, rods, floats, or wires enter the tank, he explained. The ultrasonic probe heads are metal, not plastic.
Unlike traditional fuel probes, the output of the PLP is a digital serial stream. PLP is designed to be compatible with Radiant’s Fuel Gauges only, so the pilot sees fuel level information, fuel usage trends, and more via the fuel gauge’s display.
