Ph Testing

Hanna Instruments HI98128 pHep 5pH/Temperature Tester, 6-25/64' Length x 1-19/32' Width x 1' Height

$135.00

$ 63 .99 $63.99

4.5

PH Meter, 0.01 High Accuracy Pocket Size with 0-14 PH Testing Range PH Tester, Digital PH Meter for Water, Water Tester for Hydroponics, Drinking Water and Pool

$5.99

$ 2 .99 $2.99

4.8

pH Meter,Hydroponic pH Tester, Nutrients ppm pH Meter with Backlit Display,Digital 4 in 1 TDS EC Temp pH and ppm Meter for Nutrients Water,Aquarium,Drinking Water,Tap Water,Irrigation Water

$25.99

$ 11 .99 $11.99

4.6

TDS Meter Digital Water Test,Electronic Water Test with 0-9999 PPM Measurement Range for Household Drinking Aquariums,Pools,Hydroponic,Hand Held,Quick Read,Blue

$8.99

$ 4 .99 $4.99

4.5

Oakton WD-35634-30 pHTestr 30 pH Tester, For Temperature

$127.79

$ 53 .99 $53.99

4.7

TDS Meter Digital Water Tester - Accurate Water Tester for Drinking Water | 0-9990 PPM Meter - 1s Water Quality Tester - TDS Water Tester for Hydroponics, Household Drinking, and Aquarium

$12.99

$ 6 .99 $6.99

4.9

pH Meter for Water 4 in 1 pH EC TDS Temp Meter for Hydroponics PPM and EC Water Tester Digital pH PPM Meter for Nutrients Growing Hydroponics Gardening DWC hydroponics System

$29.99

$ 12 .99 $12.99

4.9

PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium

$6.99

$ 2 .99 $2.99

4.6

E ESEASONGEAR - ZW2 TDS Meter, Replacement for Zerowater Water Tester, 0-9990 PPM

$10.99

$ 4 .99 $4.99

4.6

2 in 1 Temperature pH Monitor Meter Tester Sensor Test Kit 0~14.0 pH Automatic Buffer Recognition BNC Electrode Probe for Hydroponics Aquarium Lab Testing Food Drinking Water pH of Saltwater/seawater

$36.99

$ 16 .99 $16.99

4.9

pH Meter for Hydroponics PPM EC Meter for Plant Nutrients Simultaneous Measurement of pH Conductivity TDS Temperature for Reservoir Tank Water DWC Aeroponic Garden Indoor Outdoor Growing

$27.99

$ 12 .99 $12.99

4.4

pH Meter, TDS/pH/Temperature 3-in-1 pH Meter for Water, 0-14 pH Measurement Range Digital pH Meter, 0.01 High Precision Water Quality Digital pH Tester with ATC, pH TDS Test Meter for Drinking Water

$15.90

$ 7 .99 $7.99

4.4

Pool Salt Tester, Digital 5 in 1 pH TDS EC Salinity Meter with Calibration Solution Kit, Simultaneous Display ppm pH for Saltwater Pool, Aquarium, Hot Tub, Spa, Hydroponics, Home Brew&Pickling

$29.99

$ 14 .99 $14.99

4.9

PH Meter, Digital 4 in 1 PH EC TDS Temp Meter for Water Hydroponics, Waterproof DWC PH and EC PPM Water Tester with Backlit for Nutrients Growing, Indoor Garden, Home Brewing, Pool, Aquarium

$18.99

$ 8 .99 $8.99

4.6

pH Meter for Food,Digital pH Meter for Fermentation,Hot Sauce,Canning,Spear Tip pH Food Tester Probe for Cheese,Cooking,Sourdough Bread,Saliva,Water Resistant Food pH Tester for Semi-Solid and Water

$38.88

$ 18 .99 $18.99

4.8

Digital PH Meter, 7in1 PH TDS EC SALT TEMP S.G ORP, High Accuracy Water Tester, Bluetooth Control, for Pool, Hydroponics and Aquariums

$13.99

$ 6 .99 $6.99

4.4

Water Quality Tester, Accurate and Reliable, EC Meter & Temperature Meter 3 in 1, 0-9990 ppm, Funayama tds Meter Digital Water Tester for Drinking Water, Aquariums, etc

$5.99

$ 2 .99 $2.99

4.3

TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range, Hand Held Digital Water Test Pen for Farming, Aquariums, Pools, Household Drinking Water (Blue)

$11.99

$ 6 .99 $6.99

4.6

Extech PH110 Waterproof ExStik pH Meter

$141.37

$ 69 .99 $69.99

4.8

2-in-1 Combo pH & Temperature Meter Water Quality Tester Replaceable BNC pH Electrode for Aquariums Hydroponics Tanks Aquaculture Laboratory

$34.99

$ 15 .99 $15.99

4.4

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Ph Testing