NO3 Test Kits again, anyone tried TetraTest?

[RockysDad]

I've been using Aqurarium Pharm's NO3 test kit and its okay for general use but I was looking for something a little bit more accurate. I know, just get a LaMotte, but that is a little out of my price range. I came across the kit by Tetra and was wondering if anyone has tried it. Does it seem pretty accurate? What is the resolution on it as far a measuring lower then 10ppm or so? Can't seem to find out any more information on this so that's why I am asking. TIA...

[ianjoe]

Ive been using a Nutrafin NO3 test. Its more accurate than the AP. It tests down to 5ppm on the scale, but its easy to tell even if there less than that in the water. I paid $15 for it, it tests 80 times. Im sure you can even find it for less. Link (http://www.hagen.com/uk/aquatic/product.cfm?CAT=1&SUBCAT=124&PROD_ID=01078450030101)