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GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester - HI98131
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The HI98131 is a slim, lightweight, and waterproof pocket sized meter that measures pH, conductivity (EC), total dissolved solids (TDS) and temperature. The meter operation is simplified with two buttons. One is used for on/off and for calibration while the other is used to switch between the measurement modes. The HI98131 has advanced features including a selectable EC to TDS conversion factor (0.5 - 500 ppm and 0.7 - 700 ppm).
groline hydroponics ph ec ppm meter
3 parameters, pH, EC/TDS and temperature, in one meter
Quick Cal Mode to calibrate pH and EC/TDS with one solution
TDS Conversion Factor selectable between 0.5 (500 ppm) and 0.7 (700 ppm)
GroLine Monitor for Hydroponic Nutrients - HI981420
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The HI981420 GroLine Monitor for Hydroponic Nutrients provides around-the-clock, continuous monitoring of pH, conductivity (EC & TDS), and temperature in hydroponic nutrient solutions.
Quick to setup, simple to use, this monitor was designed with Hydroponics, Aquaponics, and Greenhouses in mind. Make your nutrient solution easy to manage with the GroLine Monitor.
Grow better with GroLine.
Get 24/7 pH&EC measurements for consistent yields every time.
Good Laboratory Practice (GLP) feature for professional accuracy.
Calibrate pH and EC with a single Quick Cal solution.
ORP Tester - HI98201
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The HI98201 is an ORP tester ideal for use in swimming pools and spas, as it can provide a valuable indication of water quality. This tester utilizes a platinum electrode and Hanna unique renewable cloth junction, that can be pulled out when clogging occurs, reactivating the reference and restoring the electrode.
Oxidation reduction is a process by which a molecule or ion loses or gains electrons. This occurs most readily in water treatment and in pool and spa maintenance where an oxidizer, such as chlorine, is added to the water to destroy contaminants. The higher the ORP value, the greater the sanitizing power of your water.
Extractable Junction
700-Hour Battery Life
Battery Error Prevention System
DiST 1 Waterproof TDS Tester (0-2000 ppm) - HI98301
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The Hanna Instruments HI98301 DiST 1 is a low-range total dissolved solids tester than can measure up to 2000 ppm (mg/L). The DiST 1 is a rugged and reliable pocket-sized tester for use in the lab or field. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98301 DiST 1 has a 0.5 conversion factor in the measurement of TDS in a variety of applications including water conditioning, environmental monitoring, education and general laboratory use. This tester keeps things simple with a two-button operation; one for ON/OFF, the other for calibration.
HI98301 DiST 1 Large LCD
Large Multi-level LCD
HI98301 DiST 1 Exposed temperature Probe
Exposed Temperature Probe for Fast Response
HI98301 DiST 1 Two Button Operation
Simple Two-Button Operation
DiST 2 Waterproof TDS Tester (0.00-10.00 ppt) - HI98302
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The Hanna Instruments HI98302 DiST 2 is a high-range total dissolved solids tester than can measure up to 10.00 ppt (g/L). The DiST 2 is a rugged and reliable pocket-sized tester for use in the lab or field. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. This tester keeps things simple with a two-button operation; one for ON/OFF, the other for calibration.
HI98302 DiST 2 Large LCD
Large Multi-level LCD
HI98302 DiST 2 Exposed temperature Probe
Exposed Temperature Probe for Fast Response
HI98302 DiST 2 Two Button Operation
Simple Two-Button Operation
DiST 3 Waterproof EC Tester (0-2000 µS/cm) - HI98303
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The Hanna Instruments HI98303 DiST 3 is a low-range electrolytic conductivity (EC) tester than can measure up to 2000 µS/cm making it ideal to monitor a variety of water quality applications including drinking water, water conditioning, irrigation water, and environmental monitoring. The DiST 3 is a rugged and reliable pocket-sized tester for use in the lab or field. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. This tester keeps things simple with a two-button operation; one for ON/OFF, the other for calibration.
HI98303 DiST 3 Large LCD
Large Multi-level LCD
HI98303 DiST 3 Exposed temperature Probe
Exposed Temperature Probe for Fast Response
HI98303 DiST 3 Two Button Operation
Simple Two-Button Operation
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