be sure to keep that sensor nice n moist, not wet, but moist. yea look for the packets of cal solution. only a $1.50 here at the pet store so pretty easy to check accuracy, fairly cheap too.
swisha Reviewed by swisha on . ph calibration need help asap I've just went to calibrate my ph tester and its all over the place, this is the first digital ph tester i've had though and the instructions were crap and didn't give you much info on what to do with it. with the buffers, do you only use them once to calibrate it then chuck them and use new solution or what? I'm trying to calibrate it and its not givin me the right readings, eg i used the lower ph solution, calibrated then done the higher one and calibrated that, tried it on tap water and Rating: 5