JINGQI WD9201B Portable Water Quality Tester
SE
COD: 5 ~ 2000mg / L: 0.02 ~ 25mg / L
COD: 5~ 2000mg/L Ammonia nitrogen: 0.02~ 25mg/L, error of indication COD :≤ +/- 5% ammonia nitrogen :≤ +/- 3% and 0.2, Repeatability ≤ 3%, support saving 30 standard Linear dispersion and 199 measured values, equipped with USB port can be connected to the computer for data recording and printing.