Figure 2-16 Fuel Flow Sensor Ft-60 (Left) And Ft-90 (Right); Figure 2-17 Brass Pressure Sensor; Figure 2-18 Stainless Steel Pressure Sensor - Garmin GI 275 Maintenance Manual

2.4.9.6 Fuel Flow Sensors
The fuel flow sensor is incorporated in an aluminum housing that is installed in-line to the engine fuel
supply. There are two STC approved options available for installation to suit most aircraft applications.

Figure 2-16 Fuel Flow Sensor FT-60 (Left) and FT-90 (Right)

2.4.9.7 Brass Pressure Sensors
The brass pressure sensors are small sensors that are supplied with a compatible plug. Depending on the
installation, these sensors may be used to measure oil, fuel, and manifold pressure.

Figure 2-17 Brass Pressure Sensor

2.4.9.8 Stainless Steel Pressure Sensors
The stainless pressure sensors are unamplified, high-reliability sensors for harsh installation environments.
There are four sensors available to measure oil, fuel, and manifold pressure.

Figure 2-18 Stainless Steel Pressure Sensor

2.4.9.9 P-Lead RPM Pickup
A wire with two parallel resistors in-line connects from each P-lead, at the Magneto or the ignition switch,
to the GEA 24/110 to sense RPM.
190-02246-11 GI 275 Part 23 AML STC Maintenance Manual
Rev. 1 Page 2-13