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BRAND: Hanna Instruments (59)
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Hanna Waterproof Combo pH /EC/TDS/C tester$224.99
The HI 98129 Combo waterproof tester offer high accuracy pH, EC/TDS and temperature measurements in a single tester! No more...
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Hanna pHep5 Waterproof pH tester$154.99
Dual Level Display Showing pH & Temp. Rugged, Floating Waterproof Casing Replaceable pH Electrode Featuring an Extendable Junction The waterproof ...
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Hanna Digital Seawater Refractometer$299.99
The HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The...
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Hanna Checker Nitrite Ultra Low Range$74.99
Stop struggling to get accurate results for your saltwater aquarium with our simple handheld colorimeter. Our nitrite colorimeter fills the...
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Hanna Instruments 781-11 Marine LR Nitrate Checker Calibration Check Set$25.99
The Marine Nitrate Low Range Checker Calibration Check Set - HI781-11 provides a simple solution to validating the Marine Nitrate...
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Hanna Instruments Pure Water Tester$99.99
The HI98308 Pure Water tester is a rugged and reliable pocket-sized tester that offers quick and accurate readings. The HI98308...
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Electrode Storage Solution 230mL$18.99
To minimize clogging and ensure fast response time, always keep the glass bulb and the junction of your pH electrode...