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VIVOSUN Digital pH and TDS Meter Kits,0.01pH High Accuracy Pen Type,UL Certified
VIVOSUN Digital pH and TDS Meter Kits,0.01pH High Accuracy Pen Type,UL Certified

$13.67

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4-in-1 Digital pH Meter w/ pH/TDS/EC/Temp Function, 0-14.0 pH Measuremen
4-in-1 Digital pH Meter w/ pH/TDS/EC/Temp Function, 0-14.0 pH Measuremen

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3-in-1 Digital PH/TDS/TEMP Meter w/ ATC ±0.1 PH Water Quality Tester Pen
3-in-1 Digital PH/TDS/TEMP Meter w/ ATC ±0.1 PH Water Quality Tester Pen

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2Pcs Digital LCD PH Meter Pen +TDS EC Water Purity PPM Temperature Tester Tool
2Pcs Digital LCD PH Meter Pen +TDS EC Water Purity PPM Temperature Tester Tool

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VIVOSUN Digital pH and TDS Meter Kits,0.01pH High Accuracy Pen Type,UL Certified
VIVOSUN Digital pH and TDS Meter Kits,0.01pH High Accuracy Pen Type,UL Certified

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7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen
7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen

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5 in 1 Digital Water Quality Tester Pen LCD PH/TDS/EC/Salinity/Temperature Meter
5 in 1 Digital Water Quality Tester Pen LCD PH/TDS/EC/Salinity/Temperature Meter

$16.98

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Digital LCD PH Meter Pen TDS EC Water Purity PPM Temperature Tester Tool
Digital LCD PH Meter Pen TDS EC Water Purity PPM Temperature Tester Tool

$6.27

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5 in 1 Digital LCD PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Pen
5 in 1 Digital LCD PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Pen

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10 in 1 Digital Backlight PH/TDS/EC/ORP/TEMP/SG/Salt Water Quality Tester Meter
10 in 1 Digital Backlight PH/TDS/EC/ORP/TEMP/SG/Salt Water Quality Tester Meter

$28.98

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8 in 1 Digital PH/TDS/EC/ORP/TEMP/S.G/Salinity/H2 Water Quality Tester Meter Pen
8 in 1 Digital PH/TDS/EC/ORP/TEMP/S.G/Salinity/H2 Water Quality Tester Meter Pen

$22.98

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Water Quality Tester Meter Pen 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity
Water Quality Tester Meter Pen 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity

$12.97

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PH Meter, TDS&EC PPM Meter Water Tester for Household Drinking,Pool and Aquarium
PH Meter, TDS&EC PPM Meter Water Tester for Household Drinking,Pool and Aquarium

$8.99

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Digital TDS/pH testing Meter Pen Type pH Meter for Hydroponics,Household Water
Digital TDS/pH testing Meter Pen Type pH Meter for Hydroponics,Household Water

$8.99

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Apera Premium Series EC60 EC/TDS/Salinity Waterproof Conductivity Pocket Tester
Apera Premium Series EC60 EC/TDS/Salinity Waterproof Conductivity Pocket Tester

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TDS Meter Digital Water Quality Tester Testing Kits for Drinking Water 0-9990ppm
TDS Meter Digital Water Quality Tester Testing Kits for Drinking Water 0-9990ppm

$7.08

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Digital Ph Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM
Digital Ph Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM

$9.99

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PH Meter+TDS Tester Digital Hydroponic Water Monitor 0-9999 PPM Aquarium Pool
PH Meter+TDS Tester Digital Hydroponic Water Monitor 0-9999 PPM Aquarium Pool

$6.99

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Water Quality Tester Meter Pen 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity
Water Quality Tester Meter Pen 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity

$20.61

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Upgraded PH TDS Meter Combo Water Tester Kits for Drinking Water Aquarium Pool
Upgraded PH TDS Meter Combo Water Tester Kits for Drinking Water Aquarium Pool

$14.99

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Portable Digital Water Quality Meter Tester LCD PH/TDS/EC/ORP/TEMP/SG/Salinity
Portable Digital Water Quality Meter Tester LCD PH/TDS/EC/ORP/TEMP/SG/Salinity

$6.68

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5 In 1 Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Tool US
5 In 1 Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Tool US

$19.98

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Digital LCD PH Tester Meter Pen +TDS EC Water Purity PPM Temperature Tester Tool
Digital LCD PH Tester Meter Pen +TDS EC Water Purity PPM Temperature Tester Tool

$6.90

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🔥4 in 1 Water Quality Tester PH Meter Digital LCD PH/TDS/EC/TEMP EZ 9908 🔥
🔥4 in 1 Water Quality Tester PH Meter Digital LCD PH/TDS/EC/TEMP EZ 9908 🔥

$19.95

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5 In 1 Digital Water Quality Meter Tester Tool PH/TDS/EC/Salinity/Temperature
5 In 1 Digital Water Quality Meter Tester Tool PH/TDS/EC/Salinity/Temperature

$18.15

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5 in 1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Pen
5 in 1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Pen

$16.99

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Vivosun pH and TDS Meter Combo TDS EC Temperature Meter#2
Vivosun pH and TDS Meter Combo TDS EC Temperature Meter#2

$16.00

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Digital Ph Meter with ATC Ph Tester, 3 in 1 Ph TDS Temp 0.01 Resolution High -US
Digital Ph Meter with ATC Ph Tester, 3 in 1 Ph TDS Temp 0.01 Resolution High -US

$16.87

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pH and TDS Meter Combo
pH and TDS Meter Combo

$15.19

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5 in 1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Pen
5 in 1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Pen

$16.99

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Digital pH Meter PPM,TDS&EC Water Quality Tester,±0.01pH for Home Lab WHOLE SALE
Digital pH Meter PPM,TDS&EC Water Quality Tester,±0.01pH for Home Lab WHOLE SALE

$11.99

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PH Meter,Digital PH EC TDS Temp Meter Water Quality Tester for Water Hydroponics
PH Meter,Digital PH EC TDS Temp Meter Water Quality Tester for Water Hydroponics

$19.21

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HANNA INSTRUMENTS HI 9813-6, HAND HELD PORTABLE PH/EC/TDS/TEMPERATURE. METER
HANNA INSTRUMENTS HI 9813-6, HAND HELD PORTABLE PH/EC/TDS/TEMPERATURE. METER

$100.00

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7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen
7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen

$12.99

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UIUZMAR Digital pH Meter pH TDS EC Meter for Hydroponic Nutrient Solution pH ...
UIUZMAR Digital pH Meter pH TDS EC Meter for Hydroponic Nutrient Solution pH ...

$48.93

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Bluelab Combo Meter pH EC TDS PPM Temp CF -Blue Lab nutrient electrode
Bluelab Combo Meter pH EC TDS PPM Temp CF -Blue Lab nutrient electrode

$199.99

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TDS Tester Boiling Digital Ph Meter Aquarium Pool Hydroponic Water Monitor
TDS Tester Boiling Digital Ph Meter Aquarium Pool Hydroponic Water Monitor

$6.99

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Portable Digital Ph Meter + TDS Water Tester Aquarium Pool Hydroponic 0-9999 PPM
Portable Digital Ph Meter + TDS Water Tester Aquarium Pool Hydroponic 0-9999 PPM

$7.19

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pH and TDS Meter Combo
pH and TDS Meter Combo

$15.19

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PH Meter and TDS Meter Combo-PPM Digital Water Quality Tester-for Drinking Water
PH Meter and TDS Meter Combo-PPM Digital Water Quality Tester-for Drinking Water

$9.99

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Digital Ph and TDS Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter ± 2% Re...
Digital Ph and TDS Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter ± 2% Re...

$20.95

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Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen Kits
Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen Kits

$6.68

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7 in 1 PH Meter 0.01 High Accuracy ph Tester Digital for Water TDS/EC/Salinit...
7 in 1 PH Meter 0.01 High Accuracy ph Tester Digital for Water TDS/EC/Salinit...

$41.23

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PH Meter, TDS Meter Combo, Pool Water Test Kit, PH Tester Digital, PPM Meter, 0.
PH Meter, TDS Meter Combo, Pool Water Test Kit, PH Tester Digital, PPM Meter, 0.

$15.85

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VIVOSUN pH and TDS Meter Combo, 0.05ph High Accuracy Pen 6.1"x1".22", Combo
VIVOSUN pH and TDS Meter Combo, 0.05ph High Accuracy Pen 6.1"x1".22", Combo

$11.99

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PH&TDS Digital Meter,TDS EC Temperature Water Quality Tester 0-9999ppm,0-14 PH
PH&TDS Digital Meter,TDS EC Temperature Water Quality Tester 0-9999ppm,0-14 PH

$14.99

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TDS Tester+Digital Ph Meter Aquarium Pool Hydroponic Water Monitor 0-9999 PPM
TDS Tester+Digital Ph Meter Aquarium Pool Hydroponic Water Monitor 0-9999 PPM

$2.45

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PH Meter TDS EC Salinity Temperature Digital Water Quality Monitor Tester Tool
PH Meter TDS EC Salinity Temperature Digital Water Quality Monitor Tester Tool

$8.99

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Digital Ph Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM US
Digital Ph Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM US

$6.95

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2Pcs Digital LCD PH Meter Pen +TDS EC Water Purity PPM Temperature Tester Tool
2Pcs Digital LCD PH Meter Pen +TDS EC Water Purity PPM Temperature Tester Tool

$10.99

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VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter
VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter

$7.99

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TDS Meter Digital Water Drinking PH EC Temperature Accuracy Quality Tester Pen
TDS Meter Digital Water Drinking PH EC Temperature Accuracy Quality Tester Pen

$12.99

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VIVOSUN 305130-PEN PH and TDS Meter Combo Kit new in OPEN box HANDHELD PORTABLE
VIVOSUN 305130-PEN PH and TDS Meter Combo Kit new in OPEN box HANDHELD PORTABLE

$17.75

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10 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salt/H2 Water Quality Tester Meter Pen
10 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salt/H2 Water Quality Tester Meter Pen

$28.98

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Digital Ph and TDS Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter ± 2% Reado
Digital Ph and TDS Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter ± 2% Reado

$22.95

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5in1 PH Meter, PH TDS EC SALT TEMP Water Tester, Long-Term PH Monitoring, Wi-...
5in1 PH Meter, PH TDS EC SALT TEMP Water Tester, Long-Term PH Monitoring, Wi-...

$50.84

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PH Meter,Digital PH EC TDS Temp Meter Water Quality Tester for Water Hydroponics
PH Meter,Digital PH EC TDS Temp Meter Water Quality Tester for Water Hydroponics

$7.45

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TDS Water Meter Tester Aquarium Hard Water Water Quality New PH Alkaline
TDS Water Meter Tester Aquarium Hard Water Water Quality New PH Alkaline

$11.49

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Professional PH EC TDS Temp Meter for Growers and Home Brewing - Stable Readings
Professional PH EC TDS Temp Meter for Growers and Home Brewing - Stable Readings

$30.99

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Digital Chlorine ORP EC TDS Temp PH Meter Bluetooth 6 in 1 Water Quality Tester
Digital Chlorine ORP EC TDS Temp PH Meter Bluetooth 6 in 1 Water Quality Tester

$50.00

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10 in1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen
10 in1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen

$28.98

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7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen
7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen

$21.98

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Digital LCD TDS & EC Meter pH Tester Aquarium Hydroponic Water Monitor PH Tester
Digital LCD TDS & EC Meter pH Tester Aquarium Hydroponic Water Monitor PH Tester

$8.99

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Hanna GroLine pH EC TDS Temperature Meter Waterproof Digital Tester New
Hanna GroLine pH EC TDS Temperature Meter Waterproof Digital Tester New

$202.50

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7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS LCD Backlight Water Quality Tester PH Meter ~
7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS LCD Backlight Water Quality Tester PH Meter ~

$22.79

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Vivosun Handheld Digital PH & TDS Meter 305130-PEN w/ Carry Case & Instructions
Vivosun Handheld Digital PH & TDS Meter 305130-PEN w/ Carry Case & Instructions

$10.97

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Water pH Meter,TDS&EC Water Tester,for Hydroponics,Household Drinking,Aquarium
Water pH Meter,TDS&EC Water Tester,for Hydroponics,Household Drinking,Aquarium

$19.21

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Digital Water Quality Test Pen EC TDS Tester PH Meter Water Hardness Purity Test
Digital Water Quality Test Pen EC TDS Tester PH Meter Water Hardness Purity Test

$2.88

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3 In 1 Digital PH Water Testet Pool Hot Tub Meter with ATC TDS High Accuracy
3 In 1 Digital PH Water Testet Pool Hot Tub Meter with ATC TDS High Accuracy

$19.99

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PH Meter Digital TDS Meter EC&Temperature Water Quality Tester for Drinking,Pool
PH Meter Digital TDS Meter EC&Temperature Water Quality Tester for Drinking,Pool

$11.99

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pH Salt Meter 5 in 1 pH TDS EC Salinity Tester for Pool Spa Aquarium Hydropon...
pH Salt Meter 5 in 1 pH TDS EC Salinity Tester for Pool Spa Aquarium Hydropon...

$28.03

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PH TDS Salinity Controller Meter WIFI Aquarium Tank Seawater Salt Tester
PH TDS Salinity Controller Meter WIFI Aquarium Tank Seawater Salt Tester

$50.00

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5 in 1 Digital LCD PH/TDS/EC/Temperature/Salinity Water Quality Tester Meter Pen
5 in 1 Digital LCD PH/TDS/EC/Temperature/Salinity Water Quality Tester Meter Pen

$16.98

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Digital PH Meter TDS Tester Pool Water Aquarium Hydroponic Water Monitor 0-9999
Digital PH Meter TDS Tester Pool Water Aquarium Hydroponic Water Monitor 0-9999

$7.95

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7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen
7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen

$7.45

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HANNA INSTRUMENTS HI 9813-6, HAND HELD PORTABLE PH/EC/TDS/TEMPERATURE. METER
HANNA INSTRUMENTS HI 9813-6, HAND HELD PORTABLE PH/EC/TDS/TEMPERATURE. METER

$99.00

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VIVOSUN pH and TDS Meter Combo, 0.05ph High Accuracy Pen 6.1x1.22 in, Combo
VIVOSUN pH and TDS Meter Combo, 0.05ph High Accuracy Pen 6.1x1.22 in, Combo

$13.99

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HANNA INSTRUMENTS pH/TDS/EC METER HI 9813 w/HI 1285 Probe • New
HANNA INSTRUMENTS pH/TDS/EC METER HI 9813 w/HI 1285 Probe • New

$100.00

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Bluelab Combo Meter pH EC TDS PPM Temp CF -Blue Lab nutrient electrode
Bluelab Combo Meter pH EC TDS PPM Temp CF -Blue Lab nutrient electrode

$247.79

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Digital pH Meter with ATC pH Tester,3-in-1 TDS/PH/Temperature Meter
Digital pH Meter with ATC pH Tester,3-in-1 TDS/PH/Temperature Meter

$16.87

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PH Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM New
PH Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM New

$10.99

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6in1 Multi-Parameter Water Quality Test Meter PH EC SALT TDS PPM TEMP S.G Tester
6in1 Multi-Parameter Water Quality Test Meter PH EC SALT TDS PPM TEMP S.G Tester

$69.90

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pH Salinity Tester 5 in 1 pH SALT TDS EC Temp Meter for Hydroponic System Saltwa
pH Salinity Tester 5 in 1 pH SALT TDS EC Temp Meter for Hydroponic System Saltwa

$15.00

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7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS LCD Digital Water Quality Tester PH Meter USA
7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS LCD Digital Water Quality Tester PH Meter USA

$24.98

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5 In 1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Pen
5 In 1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Pen

$17.98

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Ph Salt Meter 5 in 1 Ph TDS EC Salinity Tester for Pool Spa Aquarium Hydroponic
Ph Salt Meter 5 in 1 Ph TDS EC Salinity Tester for Pool Spa Aquarium Hydroponic

$22.81

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VIVOSUN Digital Ph and TDS Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter ±
VIVOSUN Digital Ph and TDS Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter ±

$9.00

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4In1 PH/TDS/EC/Temperature Digital Meter Pen Water Quality Analysis Tester L3
4In1 PH/TDS/EC/Temperature Digital Meter Pen Water Quality Analysis Tester L3

$30.74

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LCD Digital Electric PH Meter Tester+TDS-3 PPM Meter Water Quality Purity Tester
LCD Digital Electric PH Meter Tester+TDS-3 PPM Meter Water Quality Purity Tester

$7.19

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Digital LCD PH Meter Pen TDS EC Water Purity PPM Temperature Tester Tool PPM USA
Digital LCD PH Meter Pen TDS EC Water Purity PPM Temperature Tester Tool PPM USA

$8.99

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Aquarium Digital PH Meter TDS Tester Pool Hydroponic Water Monitor 0-9999 PPM
Aquarium Digital PH Meter TDS Tester Pool Hydroponic Water Monitor 0-9999 PPM

$2.64

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Hanna Instruments HI 9813-6 PH/EC/TDS/temp. Meter
Hanna Instruments HI 9813-6 PH/EC/TDS/temp. Meter

$150.00

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Digital LCD Water Quality Tester Meter Pen PH/TDS/EC/ORP/TEMP/SG/Salinity Tester
Digital LCD Water Quality Tester Meter Pen PH/TDS/EC/ORP/TEMP/SG/Salinity Tester

$18.03

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Oakton PH/CON 510 LCD Display pH/Conductivity/TDS/ºC/ºF Benchtop Meter Works
Oakton PH/CON 510 LCD Display pH/Conductivity/TDS/ºC/ºF Benchtop Meter Works

$50.00

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VIVOSUN pH and TDS Meter Combo, High Accuracy Pen
VIVOSUN pH and TDS Meter Combo, High Accuracy Pen

$8.99

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PH Meter, TDS Meter Combo, Pool Water Test Kit, PH Tester Digital, PPM Meter, 0.
PH Meter, TDS Meter Combo, Pool Water Test Kit, PH Tester Digital, PPM Meter, 0.

$13.96

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Digital Ph and TDS Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter ± 2% Read
Digital Ph and TDS Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter ± 2% Read

$20.99

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5 In 1 Digital PH/TDS/EC/Salinity/Temperature Water Quality Tester Meter Tool US
5 In 1 Digital PH/TDS/EC/Salinity/Temperature Water Quality Tester Meter Tool US

$17.98

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4-in-1 Digital pH Meter w/ pH/TDS/EC/Temp Function, 0-14.0 pH Measuremen
4-in-1 Digital pH Meter w/ pH/TDS/EC/Temp Function, 0-14.0 pH Measuremen

$19.66

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7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen
7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen

$20.98

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