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Hanna Instruments · Other
Marine Ammonia Colorimeter HI784
Hanna Instruments HI784 Marine Ammonia Checker, a handheld colorimeter for saltwater aquariums that measures ammonia colorimetrically with a digital readout instead of a color-comparison card. Range 0.00 to 2.50 ppm with 0.01 ppm resolution and +/- 0.05 ppm accuracy using an adaptation of the Salicylate method; runs on a single AAA battery.
Price: $74.99 USD
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