Shen ChangHong 
Portable Instruments
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Portable Water Quality Analyzer (COD 、NH3N、TN)
Model:PWN-830C
Portable and hand-held design, equipped with digester, easy to operate.
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Portable Water Quality Analyzer (NH3N、TP、TN)
Model:PWN-830D
With a 4 hole digester, the digester is separated from the water quality analyzer, and the temperature PID automatically controls temperature and timing.
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Portable NH3N Analyzer
Model:CHNH-812
Hand portable design, built-in battery, good stability and high precision
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Portable TP Analyzer
Model:PWN-810A
Hand portable design, equipped with portable case, time-saving operation and standby time can be more than 6 months.
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Portable TN Analyzer
Model:PWN-810B
Hand portable design, equipped with portable box, temperature PID automatically controls temperature and timing, and standby time can be more than 6 months.
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Portable Copper (Cu) Analyzer
Model:PCHCU-100
The instrument uses a monochrome cold light source, which automatically processes the data using a microcomputer to directly display the copper concentration value of the water sample.
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