the Milwaukee ph600 comes with a factory warranty of 2 years if it breaks they will give you a new one.. when you first get it before you use it you have to calibrate it, if you dont use it for awhile you have to calibrate it, if you dont know how to calibrate it, read above, or buy a liquid test kit for 7 bux, and anybody who says i get confused when i look at the colors thats the dumbest thing i ever heard... i understand if u don't wanna use it cause you'll be off by .2 but if you cant color coordinate you shouldn't grow hydro....It sucks. I had it for less than 5 days, and already it broke, and I cant calibrate it. Also, you cant find calibration instructions anywhere online.
really how long have you had it, ive always heard that the Hanna testers were low quality chinatown merch??I went with a Hanna 9186 or something like that and have never looked back
LoL... i know i was mad surprised when u jumped on right after me..... i guess i revived it.....1.5 yrs. I didn't notice but this thread is old