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Get two measurements (Free Ammonia and Total Ammonia) on one Chemkey. By measuring two parameters on one Chemkey free up a slot and save time. Must use the Free & Total Ammonia Chemkey along with the Monochloramine Chemkey.
Ammonia, free 0.05 - 0.5 mg/L NH3-N / total 0.05 - 1.50 mg/L NH3-N, and Monochloramine, 0.04 - 4.0 mg/L Cl2, Chemkeys. For SL1000 Portable Parallel Analyzer (PPA).
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