Hi.
I do not want to buy this thingy; gardeners may find it convenient but they do not know how to use a multimeter nor have one.
http://www.hydroponics-simplified.com/ec-meter.html
So I want just to probe the solution resistance to obtain meaningful readings instead of pretty lights on a unitless scale.
How would you suggest to equate ?
I do not want to buy this thingy; gardeners may find it convenient but they do not know how to use a multimeter nor have one.
http://www.hydroponics-simplified.com/ec-meter.html
So I want just to probe the solution resistance to obtain meaningful readings instead of pretty lights on a unitless scale.
How would you suggest to equate ?