Does anyone have a Merc/D-D PO4 test kit?

[Delphinus]

Does anyone have one of these?
http://www.jlaquatics.com/phpstore/s...duct_ID=t-dpo4

I have a phosphate meter but I'm getting some very strange strange results and I need to either test a known reference sample, or do some comparative samples to see if my results are valid.

Long story short, I don't trust most test kits anymore and I'm starting to distrust this electronic meter as well. The Merc/D-D testkit has a strong reputation for high-senstivity in low-range phosphate values so I would like to see how my meter stacks up to it.