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The HI98103 Checker pH tester has been designed with many advanced features while maintaining the lo..
HI98100 Checker® Plus pH Tester
The HI98100 Checker Plus is the next generation of the original Han..
We recommend measuring CO2 periodically to ensure optimum levels for growth. The Active Air CO2 Test..
HI98121 is a waterproof meter that measures pH, ORP and temperature. The housing of this tester has ..
This waterproof tester offers high accuracy pH, EC/TDS, and temperature measurements all in a single..
The waterproof DiST 1 features a large multi-level LCD which displays both TDS and temperature readi..
The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing application..
The C65 is a microprocessor-based conductivity tester with a rugged one-piece IP67 waterproof casing..
The C66 is a microprocessor based Waterproof Conductivity Tester with a rugged one-piece IP67 waterp..
Here is a waterproof tester that offers high accuracy pH, EC/TDS, and temperature measurements in a ..
Stainless steel probes deliver fast and accurate readings with ten times better resolution. Comes w..
• Range -2.0 to 16.0 pH • Resolution 0.1 pH • Accuracy ± 0.1 pH • ATC automatic • Calibration 2 poin..