 | Lightweight, Ultra-slim Pocket Meters for Salt, Sodium, Potassium & Nitrate |
|  |  | Quick and easy test for the effectiveness of Quaternary Ammonium sanitizers $7.50 |
|  |  | pH, temperature, ORP, and selected ion measurements $595.00 |
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 | Meters and kits specifically designed for Nitrate measurements |
|  |  | Easy to use kit for pH, Nitrogen, Phosphorus & Potas $16.00 |
|  |  | Compact, portable meter that measures the essentials for vigorous growth $35.00 |
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