$521.00
SE
LEICI DGB-423 Optoelectronic Colorimetry Water Quality Analyzer Ammonia Nitrogen
ammonia nitrogen0.000~4.000
Measurement method Noll reagent method, light source wavelength 420nm, Measurement range 0.000~4.000, error of indication ≤ +/- 10%, Repeatability ≤ 3%,

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