JBL ProAquaTest Lab Koi is a professional test laboratory for the safe analysis of all important water values for your koi pond. The JBL ProAquaTest Lab Koi consists of 11 different tests for comprehensive water analyses of your pond.+ pH 3.0-10+ pH 7.4-9.0+ KH carbonate hardness+ GH general hardness+ NH4/NH3 Ammonium/Ammonia+ NO2 Nitrite+ NO3 Nitrate+ PO4 Phosphate sensitive+ PO4 Phosphate Koi High Range+ O2 OxygenWaterproof plastic case with 6 glas cuvettes, 2 syringes, dosage spoons, thermometer, ballpoint pen and paper for taking notes. A compensation system allows for more precise color comparison.