The Fuel Quantity Probes from LMS are lightweight, durable and cost-effective.  They have been developed to withstand any flight conditions with outstanding reliability

AC Probes
The AC probes made of graphite composites are the lightest fuel probes available in the industry.  They are corrosion proof and virtually immune to all corrosion, cracking, dents or other field maltreatment as well as EMI.

DC Probes
The LMS Grounded Outer Tube DC Fuel Probe is compatible with a 200v/m EMI environment.  The probe utilizes two composite tubes as the capacitive elements. The outer tube is grounded to the airframe, providing a Faraday cage shield around the probe components thus shielding the diodes from the 200v/m EMI levels. The two tubes are structurally joined by a nickel-plated bottom cap, flange or top cap with an EMI connector. To prohibit arcing, the minimum distance between the two concentric tubes is 0.25 inches.  The probe retains all the advantages of the LMS Graphite Composite Probe.  The weight reduction benefit is especially noticeable when compared with metal two-tube or three-tube designs.