I have two Hanna PH meters for sale:
A Hanna HI 9210N (the small one) and a Hanna HI 931000 (the larger one in the photo)
Both are waterproof, and have temperature compensation 0-70 degrees C and will measure a range from 0.00 - 14.00 PH with a 0.01 resolution. I also have the instructions for both units as PDF files. Both units will require a probe (HI 1217D) available online.
I have not tested the meters as i dont have a probe but both units power up fine with a 9V battery.
$50 each.
Pickup on weekends or evenings in park slope Brooklyn or at my work in Union Square during the week.
A Hanna HI 9210N (the small one) and a Hanna HI 931000 (the larger one in the photo)
Both are waterproof, and have temperature compensation 0-70 degrees C and will measure a range from 0.00 - 14.00 PH with a 0.01 resolution. I also have the instructions for both units as PDF files. Both units will require a probe (HI 1217D) available online.
I have not tested the meters as i dont have a probe but both units power up fine with a 9V battery.
$50 each.
Pickup on weekends or evenings in park slope Brooklyn or at my work in Union Square during the week.