Charles Gerard Co. Ltd

- Ammonium strips (NH4), 0,2-7,0 mg/l per 50 strips
- Ammonium strips (NH4), 20-180 mg/l per 50 strips
- Ammonium strips (NH4), 5,0-20 mg/l per 50 strips
- Calcium strips (Ca), 2,5-45,0 mg/l per 50 strips
- Calcium strips (Ca), 5-125 mg/l per 50 strips
- Chlorine strips (Cl2), 0,5-10 mg/l per 50 strips
- Fixing Bath strips (Ag), 0,20-5,0 g/l per 50 strips
- Formaldehyde strips (HCHO), 1,0-45 mg/l per 50 strips
- Glucose strips, 1-100 mg/l per 50 strips
- Iron strips (Fe), 0,5-20 mg/l per 50 strips
- Iron strips (Fe), 20-200 mg/l per 50 strips
- Magnesium strips (Mg), 5-100 mg/l per 50 strips
- Manganese strips (Mn), 0,5-45 mg/l per 50 strips
- Nickel strips (Ni), 10-200 mg/l per 50 strips
- Nitrate strips (NO3), 5-225 mg/l per 50 strips
- Nitrite strips (NO2), 0,5-25,0 mg/l per 50 strips
- Nitrite Test Plus (NO2), 0,02-1,00 mg/l for 100 tests
- Peracetic acid strips (C2H4O3), 1,0-22,5 mg/l per 50 strips
- Peracetic acid strips (C2H4O3), 75-400 mg/l per 50 strips
- Peroxide strips (H2O2), 0,2-20 mg/l per 50 strips
- Phosphate strips (PO4), 5-120 mg/l per 50 strips
- Phosphate Test Plus (PO4), 0,1-5,0 mg/l for 100 tests
- Potassium strips (K), 0,25-1,20 g/l per 50 strips
- Potassium Test Plus (K), 1,0-25,0 mg/l for 100 tests
- Sulfite strips (SO3), 10-200 mg/l per 50 strips
- RQ easy Nitrate strips (NO3), 5-250 mg/l per 50 strips