Bluetooth Wattmeter
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The wireless cockpit meters can measure the motor-power, speed, cadence, voltage and fuel gauge / battery indicator.
Common Watt meters require that the motor current flows through the meter itself, the disadvantage is that it requires long thick cables to the meter on the handlebar. That is why the electronics is divided into two parts: the measuring part is located inside the motor controller or the Bluetooth Watt meter dongle and the other part is the gauge on the handlebar. All gauges together are powered by just two thin wires for the 5V.