Fuel-Finger is the ultimate Tool for Pilots.                                                       
The pre-flight-check requires the check of the amount of fuel inside the tank of the aircraft. Everyone knows that the process of checking this bears problems since you are not able to look inside the tank of a Cessna 152 or 172 without a ladder! And even though you reach the tank-lid you cannot see anything because the visibility inside the tank is really bad.

Every pilot knows - or should know - that the fuel-meters onboard are absolutely unprecise and a visual control urgently necessary to avoid hazards.

The simple solution: Fuel-Finger

Stop wondering how many litres could be inside the aircraft. Instead CHECK it within  5 seconds:

Do it like this::