How many parameters can a multi-parameter water quality detector measure?

REGIC's DGB-480 multi-parameter water quality analyzer can detect COD, ammonia nitrogen, total phosphorus, residual chlorine, chlorine dioxide, residual chlorine/chlorine dioxide, hexavalent chromium, permanganate index, aluminum ion, water hardness, urea, manganese, cadmium, ferrous ion, phosphate, formaldehyde, total nitrogen, nitrite nitrogen, nitrate nitrogen, ammonium ion and sulfite.