I mean, you don't need to spend $50 on a meter I don't think. I just got tired of the cheap ones. I'm sure someone will come along and let you know that they have a decent one that cost about $20.
(Isn't there a "me me funny pic" the kids post about being over some thousand?)
I bought this one....HM digital COM-80
I have one.
$20-30 off Amazon. GET CALIBRATION FLUID.
It says you don't need it. Get their 342ppm cal fluid. Mine was only off by 50-ish. Still, meter is worthless if you don't know if it's accurate.
Meter:
Amazon product ASIN B008SOPO10
Cal solution:
Amazon product ASIN B001VE99X8
See yours too...guess it's not bad then huh?that's what mine looked like also....only higher...I watered my oldest plant today with straight tap water that sat overnight. 6.14 PH, 50 ppm No nutrients.
My runoff was slightly yellow, and over 3200.HF soil