CIES DIGITAL FUEL LEVEL SENDER RETROFIT NOW CERTIFIED FOR CIRRUS AIRCRAFT
- TSO and STC Approved for all Cirrus SR20, SR22, SR22T G1, G2, and G3 aircraft
- Complete kit includes CIES Digital Fuel Level Senders, Aerospace Logic FL202G Two Tank Digital Display, Installation and STC paperwork, and all required interconnects (Garmin Perspective integration requires S/W Update v0764.15 and subsequent, see SB 2X-42-08 R1)
CLICK HERE for our list of Installation Centers and place your order today!
Conflicting information between your “Fuel Level” and your “Available Fuel” has never been a comforting situation. False alarms due to erratic fuel level senders are never welcome in the cockpit.
The admonition to “Not trust your fuel level gauge” has been ingrained from your first flight.
TechnologyThe CiES fuel level sensor utilizes a magnetic pair located on the float arm which is detected by a non-contact sensor outside the tank. This level sensor system is vibration immune and is ideal for fuel or other liquid level sending for all aviation applications. |
with Accurate Fuel Measurement
ACCURACY
CiES Inc. binary sensor system allows a distinct address for a multitude of float level locations. Multiple distinct and repeatable float level locations allow the display to more accurately depict the actual fuel level in the tank
FAA Certified and installed in current production aircraft.
This sensor component is a paradigm shift for fuel level in sub 12,500 lb aircraft. The sensor system provides unprecedented accuracy and reliability in a difficult operational environment.
Environmentally tested to DO-160˙F
Application Notes
The Aerospace Logic Display will show a unique fuel imbalance alarm methodology tailored for each aircraft installation.
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Retrofit for Center Gauge
- Aerospace Logic has worked with CIES to develop a fuel level indicator that is compatible with our unique output.
- Provides an effective Fuel Imbalance Warning.

The CIES sending unit is a direct physical retrofit replacement for the existing sender as illustrated to the left.
However, wiring changes are required to integrate these level sensors into your aircraft as the CIES Fuel Level sensors output digital data and not the resistance analog information from the existing senders.
The upper illustration shows the existing sender in your tank
The lower shows the new CIES Fuel Level Sender replacement
What is Required:
- 12 volt input (auxiliary) to the inbd Fuel Level Sensor
- 12 volt input (auxiliary) to the IPS Level Sensor
- 2 additional wires between the inbd and outbd sensor
- New wire harness mating connectors - Switchcraft EN3 Environmentally Sealed
- New software for the MFD and/or the Aerospace Logic Display to replace the existing fuel level indicator
FEATURESThis technology presented by the CiES fuel level sensor presents a unique level sensing solution that improves upon all current aviation fuel level sensing systems in the following ways: |
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Reliable fuel level indication even under DO-160(F) Vibration testing. Tested for service in aircraft vibration simulation for over 1 million cycles without failure or duress. |
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DO-160˙F tested Explosion Proof - No electronics in the tank. |
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Sensor output directly into the Garmin MFD. |
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Any aviation fuel type - including the eventual replacement for 100 LL will be compatible. Unlike capacitive systems fuel contents, additives or contaminants will not alter the level readings. |
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Teflon coated and passivated stainless components in the tank. |
Retrofit Kit |
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Retrofit kit TSO and STC Approved and available for installation on all Cirrus SR20, SR22, SR22T G1, G2, and G3 aircraft. The retrofit kit utilizes the Aerospace Logic FL202G Two Tank Digital Display. CLICK HERE to learn more... |
CLICK HERE for an in-flight video showing the CIES Fuel Level Senders...
CLICK HERE to see an in-flight video of the CIES Fuel Level Sender Cirrus Retrofit...





