Ph Meters

VIVOSUN Digital pH Meter and 18-Pack pH Buffer Solution Powder, 6.86/4.00/9.18 for Precise Calibration

$15.99

$ 7 .99 $7.99

4.8

2025 All-New 3PCS 3-in-1 TDS&pH Meter, pH Meter for Water, 0.01 High Precision Water Quality Digital pH Tester and 3 pH Calibration Powders, for Drinking Water, Lab ph Meter, Pool Water ph Tester

$9.99

$ 4 .99 $4.99

4.9

All New 2025 TDS Meter Digital Water Tester for Drinking Water, 4 in 1Portable Water Quality Tester with EC Temp Color Display, PPM Meter Water Tester for Aquarium Hydroponics Tap Water (White)

$5.99

$ 2 .99 $2.99

4.7

Atlas Scientific Oxidation-Reduction Potential Lab Grade ORP Probe -2000mV - +2000mV

$89.99

$ 38 .99 $38.99

4.5

Pool pH Meter Smart pH Chlorine Monitor Solar & USB Powered Salinity Tester for Saltwater Pool 7 in 1 Digital pH Chlorine Salt ORP TDS EC Temp Test Kit for Inground Pool Above Ground Pool Spa Hot Tub

$159.99

$ 78 .99 $78.99

4.6

ECO6 BL Nitrate Tester for Fish Fruit Vegetable Meat,TDS Water Tester Radiation Meter Geiger Counter Food Detector for Home Health

$129.99

$ 60 .99 $60.99

5.0

6 in 1 //EC/SG/Salt/Temperature Water Quality Tester, Connection Online Monitoring Digital Tester with Probes Multi Parameter Wall Mounted Water Tester for Aquariums and(#1)

$72.69

$ 32 .99 $32.99

4.4

PH Meter & TDS Meter 5 in 1 Water Tester pH/TDS/EC/Salt/Temp Meter,PH Meter for Water with LCD Backlit,pH Tester Digital for Drinking Water.

$42.99

$ 21 .99 $21.99

4.3

pH Chlorine Meter, Digital ORP Meter, Salinity Tester for Saltwater Pool, pH PPM EC Monitor for Hydroponics, SPA 7 in 1 pH Test Kit

$39.99

$ 16 .99 $16.99

4.5

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy & AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each

$67.50

$ 26 .99 $26.99

4.5

Hydrogen Water Tester, ORP Meter for Drinking Water, Digital pH Meter, Electronic pH PPM ORP Temp Detector for Water, Hydroponics, Swimming Pool, Aquariums, Kombucha

$29.99

$ 15 .99 $15.99

4.3

Hydrogen Water Tester Meter for Hydrogen Water Bottle, 7-in-1 H2 TMEP EC TDS Salt pH ORP Meter, TDS Meter Digital Water Tester for Drinking Water, Filtered Water, pH Tester for Juice, Coffee

$35.88

$ 18 .99 $18.99

4.5

pH Moisture Meter Smart Soil Test Kit Garden pH Meter Hygrometer pH Conductivity Meter for Hydroponic 8 in 1 Farm pH Moisture pH Moisture EC Fertility Salt Sunlight Air Humidity Temp Tester

$45.99

$ 22 .99 $22.99

4.7

Atlas Scientific pH Kit 0-14 pH

$164.99

$ 74 .99 $74.99

4.9

Atago AES-421 Digital Salt-Meter ES-421

$810.22

$ 99 .00 $99.00

4.3

WiFi Water Quality Monitor 5-in-1 pH, S.G., TDS, Salt & Temperature Tester | 24/7 Online Hydroponic Monitoring with Data Logging & Alarms for Aquariums, Fish Ponds & Saltwater Pools

$48.90

$ 25 .99 $25.99

4.7

TDS Meter for Water, Testing High-Precision Water TDS Meter Digital for Home, Drinking Water, and Aquariums - Accurate and Reliable Water Quality Tester Kit, Green

$8.99

$ 3 .99 $3.99

4.8

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Ph Meters