best ppm tools

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Hydrobuilder

Bluelab Conductivity Pen (EC or ppm)

$98.99

Techko Group

Water Quality Tester, Portable TDS Meter Digital (ppm) for Drinking Water

$19.99

Exclusive deal available

NU Aqua

NU Aqua PPM Meter

(2)

$19.95

35% off

Cheerstash

PureMeter 4 in 1 Tds Meter Digital Water Tester

(8)

$12.95$19.99

Bluelab Conductivity Pen, waterproof handheld EC, ppm and temperature meter with backlit display

GrowersHouse

Bluelab PPM Conductivity Pen

$99.00

Windows101

TDS Meter

(1)

$19.95

Apax Lab

TDS Meter

(9)

$28.00

Blue and white digital pH meter on a white background

Monster Gardens

Bluelab OnePen™ – pH, Conductivity & Temperature Measurement Tool

(1)

$200.80

33% off

Aquarius Water

Aquarius Water 5 in 1 Digital Meter TDS EC Salinity TEMP PH Water Tester

(1)

$35.00$52.00

Bruceshark

5in1 PH/TDS/EC/Salinity/Temperature Digital Water Quality Tester Meter Test Tool

(2)

$32.77

25% off

AirWaterIce.com

TDS3 Meter w/ Carrying Case

(2)

$14.95$19.95

Gardening Indoor

Bluelab Growers Toolbox

$206.00

18% off

Modern Farms

Bluelab® OnePen - With replaceable pH, Conductivity (EC) & Temperature Probe

(5)

$187.64$228.84

SpectraPure, Inc.

HM Digital TDS-3 Handheld TDS Meter - 0-9990 ppm -MTR-TDS-TDS3

(1)

$32.99

HM Digital TDS EZ Water Meter | TDS-EZ Water Meter

Reverse Osmosis Superstore

HM Digital TDS-EZ 0-9990 PPM Water Quality Tester

(3)

$25.00

Aqua Master Combo Pen P160 Pro2 con valigetta, soluzioni di calibrazione e manuale

Acquaponica.shop

Aqua Master Tools Combo Pen P160 Pro2 – Digital pH, EC, TDS, PPM and temperature meter

$165.00

Bruceshark

3 In 1 Digital PH TDS TEMP Waterproof Water Quality Meter Tester Test Pen Tool

(2)

$32.77

45% off

LEIVERY

4-in-1 Digital pH Tester and TDS Meter for Hydroponics and Water

$58.99$106.99

28% off

Cultivate Supply

Bluelab pH & Conductivity Starter Pack

$180.00$249.00

New Level Hydroponics

Bluelab Conductivity Pen ppm

$83.97

70% off

Cheap and Easy Hydro Store

Bluelab Commercial Truncheon Nutrient Meter

$50.00$167.00

PH Meter & TDS Meter Digital Water Tester 5 in 1 Salinity Tester PH Temp EC and TDS Meter,PH Meter for Water with LCD Backlit,Water Testing Kits for Drinking Water,Wine,Swimming Pool,Hot Tub Spas.

Exclusive deal available

RootMereGarden

PH Meter & TDS Meter Digital Water Tester 5 in 1 Salinity Tester PH Temp EC and TDS Meter,PH Meter for Water with LCD Backlit,Water Testing Kits for Drinking Water,Wine,Swimming Pool,Hot Tub Spas

$75.38

19% off

Hydro City

Bluelab Conductivity Pen

(1)

$80.00$99.00

Fresh Water Systems

HM Digital DM-1 Dual TDS Meter

(4)

$29.13

Carnivorous Plants Hub Store

TDS Meter - Measure Total Dissolved Solids - Carnivorous Plants, Drinking Water

(22)

$7.99

Exclusive deal available

Premium Aquatics

Hanna Pocket Photometer Marine Alkalinity (PPM)

$74.99

Hydrobliss

Hydrogen Water PPM Test Kit

(1)

$29.00