In this paper we have proposed a technique as a testing method for the instrument of measuring the amount of fuel filled in motorbike fuel tank. The instrument used a fluid flow meter that can be used easily by consumers to check the accuracy of gas station filler gauge. The study aims to develop a prototype of fluid flow measurement devices and a digital reporting system through IoT. The research phase consists of designing a fluid flow equipment, designing a color detection device, and

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... device, and designing a reporting system with IoT. Reporting application uses the smartphone system as a display of measurement results from flow meters and color detectors. Testing the function of the accuracy of the flow sensor on the tool is done by using a calibration factor. The output of measurements are fuel volume discharge, type of fluid and the result are shown on smartphone which connected to the internet for its reporting system.