Installing a cable speed meter on a ventilator

[Deven]

"This guide will try to add a wire to a fan speed that does not have, it usually happens in some fans especially those sold in electronics stores, this is my case because the three fans that are installed on my box until now had no such wire and sometimes if I would have liked to know how much they spin at any time as you have set in fanbus. Well, this is past and now I can monitor all three. Will explain the steps I followed to get in each model. "

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