^ I was thinking of picking up that same one. I have had a Milwaki Pen and a Hanna Pen and both ended up failing. One i paid $25 the other $50. I was going to splurg and get the hanna probe for like $190 - but everything i can find on that one you posted seems good. But cheap ones I had failed after about a month. not entirely sure how accurate they were when they were working. messed up thing about the hanna is 7.0 calibration solution looks good, but when i put it in the water it just reads way wrong. i have had it read 4.0+ and 7.0 in the same bucket without changing anything. just taking it out, putting it in something else then coming back. so i want something i can trust! sorry to hijack here, but it's relevant to op
How long you had it?
What others have you had to compare it too?
How is the accuracy in comparison?