[billbartuska]

Originally Posted by skyrookie

this is the one i got. from what i can read in german, it actually reads te flow rate

http://www.aquatuning.de/product_inf...-Highflow.html

Google translation

That's just half of what you would need. That device just generates a pulsed signal in which the pulses are proportional to the flow rate.

You also need a device to convert the pulse rate into a flow rate and display it somehow.

You can hook it to a monitored fan connector on a motherboard and it will read out the pulses as a fan speed. Then at least you'd have some data, all-be-it fan speed.