Easy to use is correct. I am not even bothering to check EC or PPM. My meter is old and I would need a new one. I am not weighing the nutes as I probably should. PH has been hanging around 5.8. That meter still functions and is correct.LOL I have the scale to weigh my nutes accurately if I wanted but, just haven't........ I haven't burnt any up yet and they are not starving either.