Seametrics has revised the EX800 series as of Sept. 1, 2015. The closest equivalent is the EX823P, if you don't need an analog output.
Please look at all the EX8x3 models available at our Seametrics Fixed Depth Insertion Magmeter With Mounted FT430 page or the EX8x9 models available at our Seametrics Fixed Depth Insertion Magmeter With Mounted FT440 page to select the unit that best meets your needs.
