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Exclusive Hm Digital Deals and Offers

From timeless classics to modern breakthroughs—discover what Hm Digital has in store.

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

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

4.2
Q1,009
HM Digital tds ez Meter, Purple, 0-9990 ppm. Measurement Range

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

4.3
Q644
Hm Digital Tds-3 Tds Meter Original - Plastic, White

Hm Digital Tds-3 Tds Meter Original - Plastic, White

3.9
Q300
HM Digital COM-80: EC/TDS Hydrotester (TDS+Conductivity Meter)

HM Digital COM-80: EC/TDS Hydrotester (TDS+Conductivity Meter)

4.1
Q664
HM Digital Ap-1 Tds Meter: AquaPro Water Tester with Thermometer and Plastic Care Box

HM Digital Ap-1 Tds Meter: AquaPro Water Tester with Thermometer and Plastic Care Box

4.3
Q311
HM Digital COM-100 HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter, 2.1" x 2.9" x 8.9", White/Purple

HM Digital COM-100 HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter, 2.1" x 2.9" x 8.9", White/Purple

4.3
Q1,459
HM Digital AquaPro Handheld Water Total Dissolved Solids Tester - HM-DIGITAL-AP-1

HM Digital AquaPro Handheld Water Total Dissolved Solids Tester - HM-DIGITAL-AP-1

4.2
Q749
HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume, Transparent/Blue

HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume, Transparent/Blue

4.5
Q451
HM Digital pH Meter pH-80 Hydrotester LCD Display With Auto Calibration & Temperature Display

HM Digital pH Meter pH-80 Hydrotester LCD Display With Auto Calibration & Temperature Display

3.7
Q734
HM DigitalTDS-3 Handheld TDS Meter with Carrying Case, 0-9990 ppm TDS Measurement Range, 1 ppm Resolution, 2% Readout Accuracy

HM DigitalTDS-3 Handheld TDS Meter with Carrying Case, 0-9990 ppm TDS Measurement Range, 1 ppm Resolution, 2% Readout Accuracy

4.3
Q1,349
HM Digital 342ppm TDS Calibration Solution (a.k.a Water Testing Solution) 3 fl oz (90 ml)

HM Digital 342ppm TDS Calibration Solution (a.k.a Water Testing Solution) 3 fl oz (90 ml)

4.5
Q554
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

4.6
Q789
HM Digital PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy

HM Digital PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy

4.4
Q1,729
HMDPHM80 Digital pH/Temperature Meter

HMDPHM80 Digital pH/Temperature Meter

4.3
Q624
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

4.5
Q739
HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy

HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy

4.6
Q529
HM DigitalPH-80 Digital pH/Temperature Meter

HM DigitalPH-80 Digital pH/Temperature Meter

4.1
Q1,259
HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 ppm Measurement Range, 1 ppm Resolution, 3% Readout Accuracy,Purple

HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 ppm Measurement Range, 1 ppm Resolution, 3% Readout Accuracy,Purple

4.5
Q589
HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy

HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy

4.5
Q804
HM Digital TDS3 TDS-3 Pocket TDS Meter Water Tester Meter with Leather Carry Case and Temperature Display

HM Digital TDS3 TDS-3 Pocket TDS Meter Water Tester Meter with Leather Carry Case and Temperature Display

4.1
Q289
HM DIGITAL TDS Meters TDS-3 Handheld Temperature TDS (PPM) Tester, 0-9990 ppm, 1 ppm Resolution, 2% Readout Accuracy Testing Water Quality For Hydroponics Aquariums Pools Drinking etc

HM DIGITAL TDS Meters TDS-3 Handheld Temperature TDS (PPM) Tester, 0-9990 ppm, 1 ppm Resolution, 2% Readout Accuracy Testing Water Quality For Hydroponics Aquariums Pools Drinking etc

4.1
Q83
HM DigitalPH-80 pH Meter Waterproof PH80 Tester HydroTester

HM DigitalPH-80 pH Meter Waterproof PH80 Tester HydroTester

4.3
Q1,369
HM Digital AP-1 AquaPro Water Quality Total Dissolved Solids Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout Accuracy (Magnetic Body)

HM Digital AP-1 AquaPro Water Quality Total Dissolved Solids Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout Accuracy (Magnetic Body)

4.3
Q839
HM Digital AP-1 AquaPro Water Quality Total Dissolved Solids Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout Accuracy

HM Digital AP-1 AquaPro Water Quality Total Dissolved Solids Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout Accuracy

4.2
Q306
HM Digital TDS-3 Handheld TDS Meter with Carrying Case

HM Digital TDS-3 Handheld TDS Meter with Carrying Case

4.1
Q314
HM DIGITAL AP-1 Handheld TDS Meter Tester With Large LCD Screen Includes ATC Temperature Reading Magnetic Body Testing For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Pure Filter system

HM DIGITAL AP-1 Handheld TDS Meter Tester With Large LCD Screen Includes ATC Temperature Reading Magnetic Body Testing For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Pure Filter system

4.4
Q709
HM Digital Com-300 Ph/Tds/EC/Temp Meter

HM Digital Com-300 Ph/Tds/EC/Temp Meter

4.0
Q2,989
HM Digital COM-100 Waterproof EC/TDS/Temp Meter

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

4.3
Q1,649
HM Digital DM-1 In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy,Blue & White

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

4.6
Q699
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

4.0
Q412
HM Digital COM-100 Waterproof EC/TDS/TEMP Meter

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

4.4
Q1,679
HM DigitalHM-100 PH/EC/TDS/Temp Monitor Wall Mounted For Water Testing Aquarium Garden Pond Care Aquatic

HM DigitalHM-100 PH/EC/TDS/Temp Monitor Wall Mounted For Water Testing Aquarium Garden Pond Care Aquatic

Q2,573
HM Digital 716160 COM-100 WATERPROOF PROFESSIONAL SERIES Combo Meter, 7", White/Purple

HM Digital 716160 COM-100 WATERPROOF PROFESSIONAL SERIES Combo Meter, 7", White/Purple

4.4
Q480
HM Digital EC-3 Handheld Conductivity Tester and Thermometer with Case

HM Digital EC-3 Handheld Conductivity Tester and Thermometer with Case

4.3
Q754
HM DigitalWater Quality TDS Meter HM Digital TDS-4TM

HM DigitalWater Quality TDS Meter HM Digital TDS-4TM

Q654
HM Digital SM-1 In-Line Single TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy

HM Digital SM-1 In-Line Single TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy

4.4
Q789
HM Digital C-342 TDS / EC Calibration Solution

HM Digital C-342 TDS / EC Calibration Solution

4.4
Q509
HM DIGITAL PH Meter PH-200 Replacement Sensor SP-P2

HM DIGITAL PH Meter PH-200 Replacement Sensor SP-P2

4.0
Q1,269
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

4.2
Q1,069
HM Digital DM-2 Commercial In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy

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

4.2
Q1,089
HM Digital DM-2 tds Inline-Dual TDS commercial measuring device for testing hydroponics, gardening, aquarium, reefs, pools, spas, water treatment, drinking water filter systems

HM Digital DM-2 tds Inline-Dual TDS commercial measuring device for testing hydroponics, gardening, aquarium, reefs, pools, spas, water treatment, drinking water filter systems

4.6
Q1,219
HM Digital PH-STOR pH Electrode Storage Solution for Use with PH-200 or PH-80, 60cc Volume

HM Digital PH-STOR pH Electrode Storage Solution for Use with PH-200 or PH-80, 60cc Volume

4.6
Q529
Flow Meter Digital Water Timer s TDS-100H-HS+HM Flow Meter Flowmeter W/Bracket Transducer Simple and Flexible Programming

Flow Meter Digital Water Timer s TDS-100H-HS+HM Flow Meter Flowmeter W/Bracket Transducer Simple and Flexible Programming

Q21,656
HM DigitalTRM-1, 3X 1/4" Tee, Triple Inline TDS PPM Monitor/Meter

HM DigitalTRM-1, 3X 1/4" Tee, Triple Inline TDS PPM Monitor/Meter

4.4
Q1,019
HM Digital AP-2 Handheld Water Electrical Conductivity Tester

HM Digital AP-2 Handheld Water Electrical Conductivity Tester

4.5
Q699
HM DigitalPH-200 PH Meter, White, 3.3" x 8.5" x 2"

HM DigitalPH-200 PH Meter, White, 3.3" x 8.5" x 2"

4.3
Q1,839
HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy

HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy

4.4
Q1,109
HM Digital TRM-1, 3X 1/4" Tee, Triple Inline TDS PPM Monitor/Meter

HM Digital TRM-1, 3X 1/4" Tee, Triple Inline TDS PPM Monitor/Meter

4.5
Q377
HM DIGITAL in-Line Single TDS Monitor SM-1 0-9990 ppm Accuracy +/-2% for Water Filtration System,RO Systems,Coolers,More

HM DIGITAL in-Line Single TDS Monitor SM-1 0-9990 ppm Accuracy +/-2% for Water Filtration System,RO Systems,Coolers,More

4.6
Q944
HM Digital PH-STOR pH Electrode Storage Solution for Use with PH-200 or PH-80, 60cc Volume

HM Digital PH-STOR pH Electrode Storage Solution for Use with PH-200 or PH-80, 60cc Volume

4.7
Q407
Flow Meter, Digital Flow Meters TDS-100H-HS+HM(DN15-700mm) Ultrasonic Flow Meter Flowmeter W/Bracket Transducer for Water, Diesel, Gasoline, and Other Liquids

Flow Meter, Digital Flow Meters TDS-100H-HS+HM(DN15-700mm) Ultrasonic Flow Meter Flowmeter W/Bracket Transducer for Water, Diesel, Gasoline, and Other Liquids

Q12,741
TDS / °F / pH / EC continuous controller HM Digital Hydromaster (HM-500)

TDS / °F / pH / EC continuous controller HM Digital Hydromaster (HM-500)

Q3,440
HM DIGITAL In-line Single TDS Monitor

HM DIGITAL In-line Single TDS Monitor

3.5
Q579
HM Digital, TDS-EZ, tds meter, handheld, TDS meter tester with LCD screen test, hydroponics gardening, aquariums, reefs, pools spas, drink pure water, purifier system

HM Digital, TDS-EZ, tds meter, handheld, TDS meter tester with LCD screen test, hydroponics gardening, aquariums, reefs, pools spas, drink pure water, purifier system

4.1
Q684
HM Digital COM-360 Waterproof pH/EC/TDS/Temp Meter Water Quality Tester Meter With Carrying Case and One Year Warranty

HM Digital COM-360 Waterproof pH/EC/TDS/Temp Meter Water Quality Tester Meter With Carrying Case and One Year Warranty

Q3,889
HM Digital AP 1 TDS Meter (White)

HM Digital AP 1 TDS Meter (White)

4.4
Q345
Commercial in-Line Dual TDS Monitor

Commercial in-Line Dual TDS Monitor

3.8
Q1,969
HM Digital Single TDS Sensor Probe for tds measuring

HM Digital Single TDS Sensor Probe for tds measuring

4.0
Q34
HM Digital EC-3 (EC) Conductivity Meter for Testing Water For Reverse Osmosis Drinking Water

HM Digital EC-3 (EC) Conductivity Meter for Testing Water For Reverse Osmosis Drinking Water

4.7
Q1,009
HM Digital PSC-154 TDS/EC Controller with 4-20mA Output, 0-9999 µS Measurement Range, 0.1 µS/ppm Resolution, -2% Readout Accuracy

HM Digital PSC-154 TDS/EC Controller with 4-20mA Output, 0-9999 µS Measurement Range, 0.1 µS/ppm Resolution, -2% Readout Accuracy

Q20,919
HM DigitalLBS-10 LeakBlock Sensor

HM DigitalLBS-10 LeakBlock Sensor

Q1,479
HM Digital Inline Dual Conductivity Meter - Measures in PPM, Meter for Desktop, Laptop, 2 AA Batteries Required, Package Quantity 1

HM Digital Inline Dual Conductivity Meter - Measures in PPM, Meter for Desktop, Laptop, 2 AA Batteries Required, Package Quantity 1

4.0
Q1,429
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp

HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp

Q7,399
Medidor / Probador Waterproof de pH / EC / TDS / ºC HM Digital (COM-300)

Medidor / Probador Waterproof de pH / EC / TDS / ºC HM Digital (COM-300)

3.9
Q1,846
TDS Conducti Activity Meter/Tester for Reverse Osmosis HM Digital TDS)

TDS Conducti Activity Meter/Tester for Reverse Osmosis HM Digital TDS)

4.1
Q644
HM Digital pH80 Digital pH/Temp Meter With One Year Warranty HM pH-80 Meter

HM Digital pH80 Digital pH/Temp Meter With One Year Warranty HM pH-80 Meter

3.2
Q1,009
HM DigitalAP-2 AquaPro Water Quality Tester

HM DigitalAP-2 AquaPro Water Quality Tester

4.1
Q674
HM Digital ORP-200 Waterproof Professional Series Handheld, White/Green, ORP Meter

HM Digital ORP-200 Waterproof Professional Series Handheld, White/Green, ORP Meter

3.6
Q3,169
HM Digital Meters HMDTDS3 3 Handheld TDS Meter

HM Digital Meters HMDTDS3 3 Handheld TDS Meter

Q197
Flowmeters Digital Flow Meters TDS-100H-HS+HM(DN15-700mm) Ultrasonic Flow Meter Flowmeter W/Bracket Transducer

Flowmeters Digital Flow Meters TDS-100H-HS+HM(DN15-700mm) Ultrasonic Flow Meter Flowmeter W/Bracket Transducer

Q13,373
HM DigitalHydroMaster HM-500

HM DigitalHydroMaster HM-500

Q4,208
HanchenUltrasonic Flow Meter with HM Sensor (DN50-700mm) Digital Pipe Liquid Flowmeter for Seawater Alcohol Industrial Sewage River Water

HanchenUltrasonic Flow Meter with HM Sensor (DN50-700mm) Digital Pipe Liquid Flowmeter for Seawater Alcohol Industrial Sewage River Water

Q10,419
HM Digital HM-100 PH/EC/TDS/Temp Monitor Wall Mounted For Water Testing Aquarium Garden Pond Care Aquatic

HM Digital HM-100 PH/EC/TDS/Temp Monitor Wall Mounted For Water Testing Aquarium Garden Pond Care Aquatic

Q12,869
HM Digital AquaPro AP-2 Conductivity EC Meter

HM Digital AquaPro AP-2 Conductivity EC Meter

3.8
Q285
HM Digital COM-80 EC/TDS Hydro Tester Handheld Pen Meter Testing Water Quality µs mS ppm PPT Measuring Kydroponics & Gardening, Pools & Spas, Aquariums & Reef Tanks, Water Ionizers, Drinking Water

HM Digital COM-80 EC/TDS Hydro Tester Handheld Pen Meter Testing Water Quality µs mS ppm PPT Measuring Kydroponics & Gardening, Pools & Spas, Aquariums & Reef Tanks, Water Ionizers, Drinking Water

3.7
Q1,409
HM Digital pH-80 pH Meter Hydrotester (WITH ONE YEAR WARRANTY)

HM Digital pH-80 pH Meter Hydrotester (WITH ONE YEAR WARRANTY)

Q989
Themisto TDS-30 Digital TDS Meter, Water Quality Tester, 0-9990ppm

Themisto TDS-30 Digital TDS Meter, Water Quality Tester, 0-9990ppm

3.8
Q165
HM Digital HydroMaster portable with pH, EC, TDS and Temperature (HM-200)

HM Digital HydroMaster portable with pH, EC, TDS and Temperature (HM-200)

Q2,895
KONVIO NEER Imported Digital LCD TDS Meter for RO Water Filter Tester and Measuring with Carry Case - Off White

KONVIO NEER Imported Digital LCD TDS Meter for RO Water Filter Tester and Measuring with Carry Case - Off White

4.2
Q176
KAMSTEALTH Hm-01 Ac Square Digital Gauge Hour Meter AC 220-240 V

KAMSTEALTH Hm-01 Ac Square Digital Gauge Hour Meter AC 220-240 V

3.4
Q265
HM DIGITAL PPH-1000 Single Line pH/Temp Controller With 2 Years Warranty Digital pH Meter…

HM DIGITAL PPH-1000 Single Line pH/Temp Controller With 2 Years Warranty Digital pH Meter…

Q3,822
HM DIGITAL TRM-1 Triple In-Line TDS Monitor

HM DIGITAL TRM-1 Triple In-Line TDS Monitor

Q466
HM DIGITAL PSC-50 Single Line TDS/EC Mini Controller With One Year Warranty Digital TDS Meter…

HM DIGITAL PSC-50 Single Line TDS/EC Mini Controller With One Year Warranty Digital TDS Meter…

Q1,208
HM Digital DM-3 Commercial In-Line Dual EC/TDS Monitor With One Year Warranty

HM Digital DM-3 Commercial In-Line Dual EC/TDS Monitor With One Year Warranty

Q2,279
HM Digital COM100 Waterproof EC/TDS And Temperature Combo Meter

HM Digital COM100 Waterproof EC/TDS And Temperature Combo Meter

4.4
Q1,679
HM Digital ORP-200 Waterproof ORP Meter Measures Oxidation Reduction Potential and Temperature

HM Digital ORP-200 Waterproof ORP Meter Measures Oxidation Reduction Potential and Temperature

3.6
Q4,469
HM Digital India Smart Digital Refractometer Sugar Quality Tester Handheld Refractometer With Removable Protective Case

HM Digital India Smart Digital Refractometer Sugar Quality Tester Handheld Refractometer With Removable Protective Case

Q6,449
HM DIGITAL AP-2: AquaPro Water Quality Tester (EC)

HM DIGITAL AP-2: AquaPro Water Quality Tester (EC)

3.9
Q432
HM DIGITAL HM-500 HydroMaster pH/EC/TDS/Temp Continuous Monitor With 3 Years Warranty Hydrometer…

HM DIGITAL HM-500 HydroMaster pH/EC/TDS/Temp Continuous Monitor With 3 Years Warranty Hydrometer…

4.0
Q9,149
THEMISTOThemisto TH-TDS10 Digital TDS Meter

THEMISTOThemisto TH-TDS10 Digital TDS Meter

4.2
Q106
HM DIGITAL PS-50D Dual Display TDS/EC Lines Controller With One Year Warranty Digital TDS Meter

HM DIGITAL PS-50D Dual Display TDS/EC Lines Controller With One Year Warranty Digital TDS Meter

1
Q3,299
HM Digital Tds Water Testing Meter, Tds-4

HM Digital Tds Water Testing Meter, Tds-4

4.1
Q82
"Yokins Hour Meter HM-2R 100-240V AC - Square Digital Gauge or Time Totalizer in LCD display with RESET Button "

"Yokins Hour Meter HM-2R 100-240V AC - Square Digital Gauge or Time Totalizer in LCD display with RESET Button "

Q337
Konvio Neer Imported Tds Meter, Total Dissolved Solids Meter, Water Quality Tester, Ppm Tester For Water Testing - White

Konvio Neer Imported Tds Meter, Total Dissolved Solids Meter, Water Quality Tester, Ppm Tester For Water Testing - White

4.3
Q145
Yokins Hour Meter HM-01 220-240v AC - Square Digital Gauge or Time Totalizer

Yokins Hour Meter HM-01 220-240v AC - Square Digital Gauge or Time Totalizer

3.9
Q283
HM DIGITAL FLM-3 Consumer Flow Meter With One Year Warranty Hydrometer

HM DIGITAL FLM-3 Consumer Flow Meter With One Year Warranty Hydrometer

Q1,559
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

Q334
HM DIGITAL SM-1EC In-Line Single EC Monitor With One Year Warranty Watermeter…

HM DIGITAL SM-1EC In-Line Single EC Monitor With One Year Warranty Watermeter…

Q614
Konvio Neer pH Test Meter ± 0.1pH High Accuracy with 0.00-14.00ph Measure Range for Drinking Water, Hydroponics, Aquariums, Swimming Pools. (Manual pH Meter)

Konvio Neer pH Test Meter ± 0.1pH High Accuracy with 0.00-14.00ph Measure Range for Drinking Water, Hydroponics, Aquariums, Swimming Pools. (Manual pH Meter)

3.9
Q365
HM Digital HM AP-2 AquaPro Water Quality Tester (EC Tester)

HM Digital HM AP-2 AquaPro Water Quality Tester (EC Tester)

3.9
Q310