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TDS Meter - Total Dissolved Solids Meter, Water Quality Testers


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Water Tester product list


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

HM TDS EZ Water Quality Tester is ideal for all your basic water testing needs including checking the TDS in your drinking water, food & coffee, Aquariums and more. This easy-to-use tester offers the best value for the the price.


In stock! Ships in 1 business day.
HM Digital TDS-EZ 0-9990 PPM Water Quality Tester
Our Price: $15.95
Retail: $16.95
You Save 6%!

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Sensafe Exact Micro 7 pH Test Strips 486639
(486639)

These pH Test Strips 486639 are used in the Sensafe Exact Micro 7 Photometer and in other water testing micro meters. Spa and Swimming pool owners should test pool water pH level weekly to ensure their water is neither too acidic or too alkaline.


Out of stock
Sensafe Exact Micro 7 pH Test Strips 486639
Our Price: $8.99
Retail: $10.99
You Save 18%!

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Sensafe Exact Micro 7 Free Chlorine Test Strips
(486637)

These Free Chlorine Test Strips 486637 are used in the Sensafe Exact Micro 7 Photometer and in other water testing micro meters. Spa and Swimming pool owners should test for free chlorine in pool water regularly.


Special Order. Ships in 7 days.
Sensafe Exact Micro 7 Free Chlorine Test Strips
Our Price: $15.95
Retail: $19.99
You Save 20%!

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HM TDS-3 Meter with Carrying Case
(TDS-3)

HM TDS-3 Meter is ideal for both residential and commercial applications including but not limited to water purification, waste-water regulation, aquaculture, hydroponics, and residential RO applications. Measurement range is 0-9990 ppm.


Out of stock
HM TDS-3 Meter with Carrying Case
Our Price: $22.20
Retail: $37.00
You Save 40%!

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HM Digital COM-100 Replacement TDS Sensor SP-C1
(SP-C1)

The HM Digital COM-100 Replacement TDS Sensor SP-C1 is a combination water testing meter and is perfect for all water quality testing applications. The HM Digital SP-C1 measures electrical conductivity, (EC) total dissovled solids, (TDS) and tempera


Special Order. Ships in 9 days.
HM Digital COM-100 Replacement TDS Sensor SP-C1
Our Price: $29.95
Retail: $38.99
You Save 23%!

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HM Digital pH Buffer Solution Variety Pack
(pH Buffer)

The pH Buffer Solution Variety Pack from HM Digital is lightweight, economically priced and has an indefinite shelf life. Easy to use. Preparation directions are included directly on the bottle.


Special Order. Ships in 10 days.
HM Digital pH Buffer Solution Variety Pack
As Low As: $8.95
Retail: $10.45
You Save 14%!

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357A Replacement 1.5v Button Cell Battery - 2-Pack
(357A)

The HM Digital 1.5 V Button Cell Battery Replacement is a battery replacement for your HM digital water monitor. This battery replacement will keep your HM TDS, TM, COM, and DM model working at its best.


Out of stock
357A Replacement 1.5v Button Cell Battery - 2-Pack
Our Price: $2.00
Retail: $2.99
You Save 33%!

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Watersafe Science Project Kit 4 Pack
(WS-425SP)

The Watersafe Science Project Kit 4 Pack is a comprehensive test kit that can compare the water quality of up to 4 different water samples. Easy enough for elementary students yet scientifically sophisticated enough for high school projects!


Out of stock
Watersafe Science Project Kit 4 Pack
Our Price: $39.95
Retail: $59.99
You Save 33%!

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Watersafe Rapid Bacteria Pool Water Test 10-Pack
(WS-359BP)

The Watersafe WS-359BP is the correct water test for the following: Testing swimming pool water Testing spa water


Out of stock
Watersafe Rapid Bacteria Pool Water Test 10-Pack
Our Price: $19.95
Retail: $29.99
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Sulfate Test Strips for eXact Micro 7+ Photometer
(486608)

The Sulfate Test Strips for eXact Micro 7+ Photometer are replacement sulfate strips for the eXact Micro 7+ Water Meter Photometer (electronic meter).


Special Order. Ships in 13 days.
Sulfate Test Strips for eXact Micro 7+ Photometer
Our Price: $10.99
Retail: $14.99
You Save 27%!

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HM Digital AquaPro AP-1 Water Quality Tester - TDS
(AP-1)

The HM Digital AquaPro AP-1 Water Quality Tester is a hand-held digital water quality tester which is used to test the amount of total dissolved solids (TDS) and other impurities in your water supply. Useful for both consumers and hobbyists, it can


Out of stock
HM Digital AquaPro AP-1 Water Quality Tester - TDS
Our Price: $25.79
Retail: $42.95
You Save 40%!

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Sensafe Exact Micro 7 Calcium Test Strips
(486629)

These Calcium Hardness Test Strips 486629 are used in the Sensafe Exact Micro 7 Photometer and in other water testing micro meters. Spa and Swimming pool owners should test pool water for calcium regularly to ensure their hardness is in the proper...


Special Order. Ships in 20 days.
Sensafe Exact Micro 7 Calcium Test Strips
Our Price: $13.99
Retail: $14.99
You Save 7%!

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Sensafe Exact Micro 7 Copper Test Strips 486632 12-Pack
(486632)

These Copper Test Strips 486632 are used in the Sensafe Exact Micro 7 Photometer and in other water testing micro meters. Spa and Swimming pool owners should test for copper in pool water regularly to ensure their copper level is not too high.


Out of stock
Sensafe Exact Micro 7 Copper Test Strips 486632 12-Pack
Our Price: $167.88
Retail: $179.88
You Save 7%!

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Sensafe Exact Micro 7 Total Alkalinity Test Strips
(486641)

These Total Alkalinity Test Strips 486641 are used in the Sensafe Exact Micro 7 Photometer and in other water testing micro meters. Spa and Swimming pool owners should test pool water for total alkalinity regularly to ensure their total alkalinity...


Special Order. Ships in 18 days.
Sensafe Exact Micro 7 Total Alkalinity Test Strips
Our Price: $12.99
Retail: $14.99
You Save 13%!

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HM Digital QC-1 TDS & Conductivity Monitor
(QC-1)

The HM Digital QC-1 TDS & Conductivity Monitor is a monitor that checks your water for conductivity levels and TDS (total dissolved solids). This conductivity monitor features eight programmable set points done by dip switch and bright LED lights fo


Special Order. Ships in 7 days.
HM Digital QC-1 TDS & Conductivity Monitor
Our Price: $21.95
Retail: $39.99
You Save 45%!

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HM Digital SM-1 TDS Monitor
(SM-1)

The HM Digital SM-1 TDS Monitor is an inline TDS monitor that can be used to electronically test your water for total dissolved solids. The HM digital sm-1 TDS meter comes factory calibrated with a 342 ppm NaCL solution, meaning that you can expect


Out of stock
HM Digital SM-1 TDS Monitor
Our Price: $24.50
Retail: $28.00
You Save 13%!

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Pool eXact 486201 EZ Photometer Water Tester
(486201)

The eXact 486201 uses state of the art water testing technology to give lab-quality results poolside.

Free shipping within the continental United States!

Special Order. Ships in 19 days.
Pool eXact 486201 EZ Photometer Water Tester
Our Price: $129.99
Retail: $139.99
You Save 7%!

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HM Digital COM-100 Water Quality Tester
(COM-100)

The HM Digital COM-100 Water Quality Tester is a combination electrical conductivitiy meter, TDS meter, and temperature reader all in one! This waterproof device is ideal for a variety of applications including scientific testing & much much more.


Out of stock
HM Digital COM-100 Water Quality Tester
Our Price: $59.95
Retail: $65.00
You Save 8%!

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Indoor Air Quality Test Kit - Schneider Labs
(Indoor Air Test)

The Schneider Laboratories Global, Inc. Indoor Air Test is a lab test kit that tests indoor air for the following: Over 700,000 compounds affecting indoor air quality All tests conducted by the Indoor Air Quality Test Kit - Schneider Labs are

Free shipping within the continental United States!

In Stock! Ships in 21 to 22 business days.
Indoor Air Quality Test Kit - Schneider Labs
Our Price: $156.99
Retail: $199.99
You Save 22%!

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eXact 486639-II Strip Micro pH
(486639-II)

The eXact 486639-II bulk test strip bottle allows you to measure the pH level of water from a variety of sources such as pools, spas, and wells.


Out of stock
eXact 486639-II Strip Micro pH
Our Price: $11.99
Retail: $12.99
You Save 8%!

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Lead Water Testing Kit - SLGi Certified
(Lead Water Test)

The Schneider Laboratories Global, Inc. Lead Water Test is a lab test kit that tests drinking water for the following: Lead All tests conducted by the Lead Water Testing Kit - SLGi Certified are run by EPA approved methods and meet all EPA, St


In stock! Ships in 1 business day.
Lead Water Testing Kit - SLGi Certified
Our Price: $58.99
Retail: $59.99
You Save 2%!

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Pthalates & BPA Test Kit - SLGi Certified
(BPA Test)

The Schneider Laboratories Global, Inc. BPA Test is a lab test kit that tests for the following in your plastic containers and other solid materials: Phtalates / Bisphenol A (BPA) All tests conducted by the Phtalates & BPA Test Kit - SLGi Certi

Free shipping within the continental United States!

In stock! Ships in 1 business day.
Pthalates & BPA Test Kit - SLGi Certified
Our Price: $370.99
Retail: $399.99
You Save 7%!

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Toxic Metal Test - SLGi Certified
(Toxic Metal Test)

The Schneider Laboratories Global, Inc. Toxic Metal Test is a lab test kit that tests for the following in your soil, drinking water, and groundwater: Toxic Metals All tests conducted by the Toxic Metal Test - SLGi Certified are run by EPA app

Free shipping within the continental United States!

In stock! Ships in 1 business day.
Toxic Metal Test - SLGi Certified
Our Price: $351.99
Retail: $399.99
You Save 12%!

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Heavy Metals Test Kit - Liquid or Solid Test
(Heavy Metals Test)

The Schneider Laboratories Global, Inc. Heavy Metals Test is a lab test kit that tests for the following in your soil and drinking water: Heavy Metals All tests conducted by the Heavy Metals Test Kit - Liquid or Solid Test are run by EPA appro

Free shipping within the continental United States!

In stock! Ships in 1 business day.
Heavy Metals Test Kit - Liquid or Solid Test
Our Price: $214.99
Retail: $299.99
You Save 28%!

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Everpure EV650057 8-Way Water Testing Kit 25-Pack
(EV650057)

The Everpure EV650057 8-Way Water Testing Kit is convenient and money-saving. This water analysis kit, also known as part number EV650057 is used for Point-of-Use (POU) products.


Out of stock
Everpure EV650057 8-Way Water Testing Kit 25-Pack
Our Price: $106.00
Retail: $124.75
You Save 15%!

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