Flow-thru Conductivity Probe – HI3001
In-line Conductivity probe with NTC sensor for immersion installation – HI7638
EC/TDS Starter Benchtop Meter (HI2630 and HI2631) - HI263X
edge® Multiparameter pH Meter, 230V - HI2020-02
Marine Calcium Checker® HC - HI758
Pool Line Copper High Range Checker - HI7024
Pool Line Free Chlorine Checker® HC - HI7014
Turbidity (EPA) Portable Meter - HI98703-02
edge® DO Benchtop Meter - HI2040-02
Portable LR EC/TDS Meter - HI99300
Marine Alkalinity (dKH) Checker® HC - HI772
Checktemp Dip Digital Thermometer - HI98539
Checktemp® Digital Thermometer - HI98501
DiST® 5 EC/TDS/Temperature Tester (0-3999 µS/cm) - HI98311
DiST 1 Waterproof TDS Tester (0-2000 ppm) - HI98301
GroLine Waterproof EC/TDS Tester - HI98318
DiST 4 Waterproof EC Tester (0.00-20.00 mS/cm) - HI98304
GroLine Hydroponics Waterproof pH/EC/TDS/Temperature Portable Meter - HI9814
Combo pH/Conductivity/TDS Tester (High Range) - HI98130
Portable pH/EC/TDS meter, range: pH 0.0 to 14.0 pH EC 0.00 to 4.00 mS/cm TDS 0 to 1999 ppm (mg/L) - HI9813-51
pHep®4 pH/Temperature Tester - HI98127
GroLine Hydroponics pH Tester with 0.01 Resolution - HI98115
Portable pH/EC/TDS/Temperature Meter, EC range: 0 to 1990 µS/cm, TDS range: 0 to 1990 ppm (mg/L) - HI9812-51
GroLine Waterproof pH Tester with 0.01 Resolution - HI98118
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0 FNU Turbidity Calibration Solution (230 mL) - HI9829-16
0 FTU Turbidity Calibration Standard - HI93703-0
0 NTU Turbidity Calibration Standard - HI93102-0
0.1° Resolution K-Type Thermocouple Thermometer with CAL Button - HI93531N
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