Has wide range ph, KH, GH, Ammonia and Nitrite.
I used to manage a pool and compared the readings against our professional Pool Test Kits and meters - the Tetra readings were exact matches.
Since everyone here loves the API I purchased one last time along with API KH/GH and API Phosphate tests. The API readings matched the Tetras
Comes with Syringe to get the water sample.
All Tests use 7 drops - easy to remember
Tubes are square and stand up on their own
GH and KH are a bit easier to tell when the color changes
Tubes are glass and don't scratch, are much clearer
Tube caps are much easier to use
I'd say both are superior to the Hagen/Nutrafin which I find hard to read.
29G - ReefKeeper Lite Controller - Pressurized CO2 - Hydor Inline heater - Fluval 205 - Fluval Pimp #18