Orion - Research - Digital pH Meter - Model #211. This is a used item, that in great cosmetic condition, and that has been tested with a pH probe simulator at a pH of 4.00, 7.00 and 10.00, and it was in great condition. Comes with a power adapter as pictured, but can also be run on 6 AA batteries, though I haven't tested it with batteries, and they aren't supplied.

Free Shipping, in the United States, with elsewhere to be quoted, via the USPS Priority Post.

Thanks for looking and hopefully purchasing!! SR