Dual Range fuel flow sender. (using the small jet pictured in front of the sender body) fuel flow from 3 liters/hour to as much as 500 liters/hour is catered for. Compatible with 8mm and 12mm hoses and similar imperial sized hoses. Compatible with a wide range of fuels including those with methanol and alcohol content. Mechanical failure of the sender will not block the fuel flow. The fuel flow sender is compatible with all of MGL Avionics range of products. Successfully fitted to every possible engine type including large aero engines.