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10 bestHm Digital Digital Penof November 2025

112M consumers helped this year.

1

HM Digital PH-80 pH Meter Waterproof PH80 Tester HydroTester
HM Digital PH-80 pH Meter Waterproof PH80 Tester HydroTester

HM Digital

9.9

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6% off

2

TDS Meter Digital Water Tester, Lxuemlu Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More
TDS Meter Digital Water Tester, Lxuemlu Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More

Lxuemlu

9.8

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3

HM Digital DM-1 in-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy
HM Digital DM-1 in-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy

HM Digital

9.6

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4

BelleVue Denver Record Player - Black
BelleVue Denver Record Player - Black

BelleVue

9.4

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28% off

5

HM Digital TDS-3 TDS Meter Handheld tds Tester With Large LCD Screen Includes ATC Temperature Reading Testing For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment
HM Digital TDS-3 TDS Meter Handheld tds Tester With Large LCD Screen Includes ATC Temperature Reading Testing For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment

HM Digital

9.2

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TDS Meter Digital Water Quality Tester for RO-RODI System Drinking Water, Aquariums, Hydroponics, 0-9990 ppm Measuring Range, 1 ppm Increments, 2% Readout Accuracy

TDS Meter Digital Water Quality Tester for RO-RODI System Drinking Water, Aquariums, Hydroponics, 0-9990 ppm Measuring Range, 1 ppm Increments, 2% Readout Accuracy

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HM Digital PH Meter PH-80 Handheld Water Resistant Water Quality Tester Pen With ATC For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Water

HM Digital PH Meter PH-80 Handheld Water Resistant Water Quality Tester Pen With ATC For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Water

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Hofun TDS Meter Digital Water Quality Tester, TDS, Temperature & Conductivity Meter 3 in 1, 0-4999 ppm, EC Meter, Digital Water Hardness Testers for Drinking Water, PPM Meter for Hydroponics Aquarium

Hofun TDS Meter Digital Water Quality Tester, TDS, Temperature & Conductivity Meter 3 in 1, 0-4999 ppm, EC Meter, Digital Water Hardness Testers for Drinking Water, PPM Meter for Hydroponics Aquarium

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Mesee TDS EC Tester Meter, 3-in-1 Professional Water Quality Test Meter LCD Digital TDS & EC Temperature Meter Testing Tool for Drinking Water, Aquariums, Hydroponics, Swimming Pools, Spas

Mesee TDS EC Tester Meter, 3-in-1 Professional Water Quality Test Meter LCD Digital TDS & EC Temperature Meter Testing Tool for Drinking Water, Aquariums, Hydroponics, Swimming Pools, Spas

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6

TDS Tester, Water Quality Meter LCD Pen with 0-9990 PPM Measurement Range Portable for The aquaculture Industry Hospitals, Swimming Pools, Household tap Water Quality Testing
TDS Tester, Water Quality Meter LCD Pen with 0-9990 PPM Measurement Range Portable for The aquaculture Industry Hospitals, Swimming Pools, Household tap Water Quality Testing

QNCIGER

9.0

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7

HM Digital COM-100 Waterproof EC/TDS/TEMP Meter
HM Digital COM-100 Waterproof EC/TDS/TEMP Meter

HM Digital

8.8

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8

HM Digital Triple Inline RO/DI TDS Monitor with 1/4 inch T-Fittings
HM Digital Triple Inline RO/DI TDS Monitor with 1/4 inch T-Fittings

HM Digital

8.5

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9

HM Digital tds ez Meter, Purple, 0-9990 ppm. Measurement Range
HM Digital tds ez Meter, Purple, 0-9990 ppm. Measurement Range

HM Digital

8.2

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10

HM DIGITAL EC-3(M) Millisiemens Electrical Conductivity EC Tester with Case Handheld & Portable Pen Type Meter Indicate Temperature ATC For Commercial Use Water Testing
HM DIGITAL EC-3(M) Millisiemens Electrical Conductivity EC Tester with Case Handheld & Portable Pen Type Meter Indicate Temperature ATC For Commercial Use Water Testing

HM Digital

8.0

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