Radium SAE Fuel Level Sender, 0-90 Ohm, 11.7"This fuel level sensor uses the standard SAE 5 bolt mounting pattern. Fits most fuel cells including Radium, ATL, Fuel Safe, Pyrotect, Harmon, Jaz, etc. and extensively used with the Radium Fuel Cell Surge Tank. This sensor works off reed switches which are located inside the sealed stainless steel probe. When the magnetic float passes up and down, the reed switch relays generate a precise resistance. The float is the only moving component of the