Login       My Wishlist
  My Cart
$0.00 / 0 items
 
In The National Interest
Politics and Policy in the Interest of the Nation
International Access
Global Shipping Options Available
Home   Our Catalog   Test, Measure & Inspect   Water Quality & Instrumentation

Water Quality & Instrumentation - 375 - Page 3 - Blowout Sale! Save up to 63%


Blowout Sale! Up to 63% off on Water Quality & Instrumentation at In The National Interest, Page 3. Top brands include ORYCOOL, instecho, Invigorated Living, AUVON, VantaKool, HM Digital, NutraBlast, Ade Advanced Optics, OudysCare, Brewer's Elite, Lxuemlu, Med X, DONECO, Watersafe, HoneForest, VANTAKOOL, Syrtenty, Hach Company, KUNHEWUHUA, & U.S. Solid. Hurry! Limited time offers. Offers valid only while supplies last.



PH Meter ORYCOOL 0.01 Resolution Digital PH Tester Pen 0.00-14.00 PH Range with Automatic Calibration Function for Drinking Water Swimming Pools Spas Aquarium Hydroponics
PH Meter ORYCOOL 0.01 Resolution Digital PH Tester Pen 0.00-14.00 PH Range with Automatic Calibration Function for Drinking Water Swimming Pools Spas Aquarium Hydroponics
By ORYCOOL
In Stock
$14.99

mpn: OPHM01,

4.6 out of 5 stars with 117 reviews
Introduction: This PH Meter is the perfect device for determining the acidity or alkalinity of liquids.It's incredibly easy to use-just immerse the electrode and the readings are automatically displayed.With 0.01pH Resolution, you may get higher accuracy than other pH meters.The electrode is designed with more durability in order to offer a longer product lifespan. Applied range: the production and drinking of purified water, Electroplating liquid, Boiler water, Water in fish tank, Water of


instecho Digital PH Meter, 0.01 Resolution Pocket Size Water Quality Tester with ATC 0-14 pH Measurement Range for Household Drinking Water, Aquarium, Swimming Pools, Hydroponics (vde)
instecho Digital PH Meter, 0.01 Resolution Pocket Size Water Quality Tester with ATC 0-14 pH Measurement Range for Household Drinking Water, Aquarium, Swimming Pools, Hydroponics (vde)
By instecho
In Stock
$10.99

mpn: ph meter, ean: 0713440005572,

4.0 out of 5 stars with 112 reviews
Specification:▲Measuring range: 0.00-14.00PH ▲Resolution: 0.01 pH ▲Accuracy: ± 0.1 pH ▲Operating Temperature: 0-80 ▲Dimension: 153mm x 29mm x 16mm ▲Life expectancy: about 500 hours ▲Relative humidity➤•HIGH ACCURACY: the pH meter with auto calibration button can automatically identify standard buffer solution of pH4.00, pH9.18, and pH6.86; its high accuracy 0.03pH range of error ensures more reliable results; automatically temperature compensation(ATC) ranges from


pH PERFECT pH Test Kit – pH Drops For Drinking Water – Measures pH Levels Of Water & Saliva More Accurately Than pH Test Strips – pH Balance – Alkaline pH Water Testing Kit, (3)
pH PERFECT pH Test Kit – pH Drops For Drinking Water – Measures pH Levels Of Water & Saliva More Accurately Than pH Test Strips – pH Balance – Alkaline pH Water Testing Kit, (3)
By Invigorated Living
In Stock
$34.95
$12.97
You Save: 63%

mpn: PHP03, ean: 0784672528559,

4.5 out of 5 stars with 101 reviews
pH PERFECT by Invigorated Water is quite simply the perfect pH test kit for quickly, and accurately, testing the pH level and pH balance of water and saliva. Unlike traditional pH test strips, that are not suitable for testing the pH levels of water, pH Perfect is the ideal solution for testing water pH levels. This super-sized 3-pack includes three 0.33 ounce (10ml) bottles providing huge value. If you are serious about your health, and want to have an alkaline body, then you may be


AUVON 2X2 44-Pack TENS Unit Pads, 2nd Gen Latex-Free Replacement Electrode Patches (FDA 510K Cleared) with Upgraded Self-Stick Performance and Non-Irritating Design
AUVON 2X2 44-Pack TENS Unit Pads, 2nd Gen Latex-Free Replacement Electrode Patches (FDA 510K Cleared) with Upgraded Self-Stick Performance and Non-Irritating Design
By AUVON
In Stock
$39.99
$18.99
You Save: 53%

mpn: ET1140021,

4.2 out of 5 stars with 249 reviews
AUVON Live Smart, Live Healthy AUVON TENS Electrode Pads - 44 Pack Universal Compatibility Most mainstream TENS chooses pin-connector for its safty as it provides more stable current. With its 2mm pin-connector, AUVON Latex-Free TENS Unit Electrode Pads would be perfectly suitable for mainstream brands TENS units, EMS massagers and muscle stimulators. High Quality & Skin Friendly Gel AUVON uses high quality gel for each pads which adds the reuse times upon to 30 and shows a good self-stick


VANTAKOOL Digital PH Meter, 0.01 PH High Accuracy Pocket Size PH Meter/PH Tester with 0-14.0 Measuring Range, Water Quality Tester for Household Drinking Water, Swimming Pools, Aquariums (Orange)
VANTAKOOL Digital PH Meter, 0.01 PH High Accuracy Pocket Size PH Meter/PH Tester with 0-14.0 Measuring Range, Water Quality Tester for Household Drinking Water, Swimming Pools, Aquariums (Orange)
By VantaKool
In Stock
$13.99

mpn: PH meter, ean: 0606682221063,

4.3 out of 5 stars with 126 reviews
VANTAKOOL Digital PH Meter, 0.01 PH High Accuracy Pocket Size PH Meter / PH Tester with 0-14.0 Measuring Range, Water Quality Tester for Household Drinking Water, Swimming Pools, Aquariums Specifications: ► Measuring range: 0.00-14.00 pH ► Resolution: 0.01 pH ► Accuracy: 0.01 pH ► Batteries: 2X 1.5V LR44 (included) ► Automatic temperature compensation: 0-50℃(32-122℉) ► Dimensions: 15x2.5x1.3cm/6x1.1x0.5 inch ► Net Weight: 52g/1.83 oz Features: ▲ High Quality and Durable


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
By HM Digital
In Stock
$42.00
$19.95
You Save: 53%

mpn: DM-1, ean: 0647608367489,

4.1 out of 5 stars with 153 reviews
Product Description: How Pure is Your Water? HM Digital's DM-1 is a dual inline monitor that measures TDS from 0 to 9990 ppm. It includes batteries, two sensors and two 1/4'' quick-connect T-fittings. The DM-1 is an easy and convenient method of determining TDS levels for water filtration/purification systems such as reverse osmosis (RO), deionization (DI) and more. It's very useful for coolers or under-the-sink systems. For any type of system that removes TDS, you can install the 'IN' sensor


Nutrablast Feminine pH Test Strips 3.0-5.5 | Monitor Vaginal Intimate Health & Prevent Infections | Easy to Use & Accurate Women’s Acidity & Alkalinity Balance pH Level Tester Kit (100 Tests Roll)
Nutrablast Feminine pH Test Strips 3.0-5.5 | Monitor Vaginal Intimate Health & Prevent Infections | Easy to Use & Accurate Women’s Acidity & Alkalinity Balance pH Level Tester Kit (100 Tests Roll)
By NutraBlast
In Stock
$12.99

mpn: PL1004, ean: 0644766056521,

4.6 out of 5 stars with 81 reviews
Discover The Accurate, Fast & Hassle-Free Way To Keep Track of your Vaginal pH Levels! Looking for a feminine pH balance test kit that will help you keep tabs on your vaginal acidity and alkalinity levels? Want to save your time, effort and money? Need a set of accurate and practical intimate feminine test strips? Introducing the Nutrablast Premium Intimate Feminine pH balance Test Strips for Women! Now you don't have to leave your home, drive for hours in traffic, sit in a waiting room and


Automatic Temperature Compensation 0-32% Brix Refractometer Beer Wine CNC Fruit by Ade Advanced Optics
Automatic Temperature Compensation 0-32% Brix Refractometer Beer Wine CNC Fruit by Ade Advanced Optics
By Ade Advanced Optics
In Stock
$23.55
$20.99
You Save: 11%

mpn: AAORHB-32ATC, ean: 0704405061351,

4.8 out of 5 stars with 186 reviews
BRAND NEW (0-32% Brix scale) Hand Held Refractometer. This unit is great for the testing of Fruits, Vegetables and Grasses, Wine or Beer makers and for the maintenance of CNC Coolants (Soluble Oils, Semi-Synthetics, Neo-Synthetics and Synthetics) and Water Soluble Drawing & Stamping Compounds. Fruits, Vegetables and Grasses: This unit will help you monitor the sugar levels of your crops, plants and trees. A valuable tool to help determine if it's the right time for harvest or you need to alter


Pack-20 (10 Pairs) Hand Shape TENS Unit Electrode Pads Reusable Self-Adhesive Replacement Massage Pads (Snap on - 3.5mm) - FDA Certified for HiDow Palm IQ TENS/EMS Electronic Pulse Massager
Pack-20 (10 Pairs) Hand Shape TENS Unit Electrode Pads Reusable Self-Adhesive Replacement Massage Pads (Snap on - 3.5mm) - FDA Certified for HiDow Palm IQ TENS/EMS Electronic Pulse Massager
By OudysCare
In Stock
$14.96

mpn: 43188-440620, ean: 0190073709273,

4.1 out of 5 stars with 140 reviews
OUDYSCARE Brand Electrode pads, The Best Choice for your health OUDYSCARE electrodes Replacement Pads are FDA(510K) Approved, used for physical and digital therapy . TENS unit. Electronic muscle stimulation (EMS) and electro stimulation therapy, pain relief, muscle shock therapy, sciatic nerve stimulation, and other pain management treats. Feature FDA(510k) Approved - (OTC) , Latex-free and non-irritating Self-adhesive, Reusable TENS electrode pads. Product size: 3'' x1.75'', Snap 3.5mm


Brewer's Elite Hydrometer & Test Jar Combo, Hardcase, Cloth - Triple Scale Specific Gravity ABV Tester- for Wine, Beer, Mead and Kombucha
Brewer's Elite Hydrometer & Test Jar Combo, Hardcase, Cloth - Triple Scale Specific Gravity ABV Tester- for Wine, Beer, Mead and Kombucha
By Brewer's Elite
In Stock
$27.97
$16.97
You Save: 39%

mpn: FBA_781176315470, ean: 0781176315470,

4.1 out of 5 stars with 19 reviews
PROMOTIONAL PRICE - LIMITED TIME ONLY! Do you want take pride in Hombrewing? Then you need the Brewer's Elite Ultimate Alcohol Hydrometer & Test Jar Combo Set! Here at Brewers Elite, it is our mission to make the world's best Hombrew equipment, so that you can focus on making the world's best brews! This Ultimate Set is the only kit to come with a FREE microfiber cleaning cloth so you can clean up your set in style, and a 250ml Graduated Cylinder, a handy bag, and a cleaning brush, so you have


TDS Meter Digital Water Tester, Lxuemlu Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal Water Test Kit 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 Water Test Kit for Drinking Water, Aquariums and More
By Lxuemlu
In Stock
$20.99
$12.99
You Save: 38%

mpn: LX-TDS1, ean: 0665059111802,

4.0 out of 5 stars with 175 reviews
water hardness test kit water quality monitor tds stick tds meter kit nutrient tester tds ph meter tds water filter TDS monitor ph teds meter☑️ TEST YOUR WATER: How Pure is Your Water? With the push of a button, the TDS water tester can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million). ☑️ EASY TO USE AND ACCURATE: Just stick it in about 1 inch of water instantly you get the reading. It's compact and doesn't need any maintenance.


TENS / EMS Unit 20 Snap Tens Unit Electrode Pads Large Premium Tens Electrodes Reusable up to 25 times per electrode Med X Brand - FDA Cleared
TENS / EMS Unit 20 Snap Tens Unit Electrode Pads Large Premium Tens Electrodes Reusable up to 25 times per electrode Med X Brand - FDA Cleared
By Med X
In Stock
$19.99
$10.85
You Save: 46%

mpn: DINOW-09834, ean: 0646117884982,

4.2 out of 5 stars with 15 reviews
EVERY ORDER Comes with 100% Satisfaction No Risk Money Back Guarantee! Beware of fraudulent sellers our guarantee only comes with Med X branded pads 20 Electrode Pads for TENs Machines and EMS Machine Use - Snap on Tens Electrode Pads ( 10 packs of 2 Snap Tens Unit Electrode Pads ) = 20 snap TENS Electrodes total per orderReuse Each Pad Up to 25 times Per Pad 3 in.'' (7.5 cm) by 1.77 in'' (4.5 cm) 3.5 mm diameter pin - Perfect Professional Replacement TENS Electrode Pads Compatible with :


DONECO 2'' Square TENS Unit Electrodes, 48-Pack Electro Pads for TENS Therapy - Universally Compatible with Most TENS Machine Models - 48-Piece Value Pack - Self-Adhering, Reusable and Premium Quality
DONECO 2" Square TENS Unit Electrodes, 48-Pack Electro Pads for TENS Therapy - Universally Compatible with Most TENS Machine Models - 48-Piece Value Pack - Self-Adhering, Reusable and Premium Quality
By DONECO
In Stock
$24.99
$18.99
You Save: 24%

mpn: DT-01, ean: 0640265261442,

4.6 out of 5 stars with 53 reviews
Get the Most of Your TENS Machine! For anyone suffering from tight muscles or a sore back, a TENS machine delivers a light current that can help ease uncomfortable pain. But when the electro pads lose their stickiness and can't adhere to your skin, you're unable to get the relief you need. With TENS Replacement Electrode Pads from DONECO, you can maximize the effectiveness of your machine and feel great again! Whether you're using a TENS, EMS or IF unit, our pads are universally compatible


Watersafe WS425W Well Water Test Kit
Watersafe WS425W Well Water Test Kit
By Watersafe
In Stock
$24.95

mpn: WS-425W, ean: 0163121151287,

4.7 out of 5 stars with 199 reviews
Fast, easy-to-use water test kits detect hazardous contaminants in municipal and private well drinking water. Drinking water test kits indicate the presence of bacteria, pesticides, and lead. Kits also include readings for nitrate (0 to 50 ppm), nitrite (0 to 10 ppm), total chlorine (0 to 10 ppm), pH (6 to 10), and water hardness (0 to 425 ppm). Well water test kits add tests for contaminants commonly found in private well water: iron and copper (0 to 5 ppm). Order bacteria, pesticides, and


HoneForest Water Quality Tester, Accurate and Reliable, TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.
HoneForest Water Quality Tester, Accurate and Reliable, TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.
By HoneForest
In Stock
$13.97

mpn: HFTDS-M7, ean: 0685642943528,

4.1 out of 5 stars with 82 reviews
Super accurate, reliable and easy to use TDS, EC &Temp water tester reader, with backlit and auto-lock function, 3 years warranty and 90 days money back guarantee. This advanced digital ppm meter pen with Advanced Microprocessor Technology, combines TDS Meter(Total Dissolved Solids), EC Meter(Electrical Conductivity) and Temperature meter all in one ergonomically designed pen. Widely be used for all Water Quality Testing, Water Purification Applications, Aquaculture, Hydroponic, Pool & Spa,


VantaKool Digital PH Meter, PH Meter 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium Water PH Tester Design with ATC(Yellow) Categ
VantaKool Digital PH Meter, PH Meter 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium Water PH Tester Design with ATC(Yellow) Categ
By VANTAKOOL
In Stock
$13.99

mpn: PH Meter, ean: 0606682248466,

4.7 out of 5 stars with 73 reviews
Specifications: Model: 2017 updated Version Measuring Range: 0-14.0 pH Resolution: 0.1 pH Accuracy: ±0.1 pH(20°C ) Use Environment: RH 95%, 0-50℃(32~176℉ ) Battery: 2×1.5V LR button cell Weight: 1.76 OZ Features: ✅High Quality and Durable It's highly accurate for measuring range of 0-14 PH, 0.1 PH resolution, measure & display pH result simultaneously with LCD display, reliable and quick reading. ✅ Easy to Use You just remove the protective cap and immerse the PH meter


Syrtenty TENS Unit Electrodes Pads 2x2 Replacement Pads Electrode Patches For Electrotherapy (2'' Square - 44 pack)
Syrtenty TENS Unit Electrodes Pads 2x2 Replacement Pads Electrode Patches For Electrotherapy (2" Square - 44 pack)
By Syrtenty
In Stock
$24.99
$19.99
You Save: 20%

mpn: TSYR2020-44, ean: 0640265453915,

4.0 out of 5 stars with 296 reviews
Perfect companion for TENS, Massage, or Muscle Stimulation. An Electrical Muscle Stimulator (EMS) is used for the purposes of encouraging local blood circulation, contraction and relaxation of the muscles and treatment of several types of muscle tenderness. Frequently used by those who have vascular or musculoskeletal conditions, or have a high level of physical activities on a daily basis, like athletes. Syrtenty offers replacement electrode pads which make sure that electro stimulation works


Hach 5870004 Pocket Colorimeter II, Ozone
Hach 5870004 Pocket Colorimeter II, Ozone
By Hach Company
In Stock
$529.75
$504.00
You Save: 5%

mpn: 5870004,

4.3 out of 5 stars with 41 reviews
Hach 5870004 Pocket Colorimeter II, OzoneSingle Parameter go anywhere portable photometer. USEPA approved for drinking water. Factory-Programmed. Waterproof, Lightweight, Rugged. Backlit Display, Data Logging, Recall.


Digital LCD Rotary Viscometer Viscosity Tester Meter NDJ-8S
Digital LCD Rotary Viscometer Viscosity Tester Meter NDJ-8S
By KUNHEWUHUA
In Stock
$685.20

mpn: 28033, ean: 6662783193146,

4.5 out of 5 stars with 77 reviews
Digital LCD Rotary Viscometer Viscosity Tester Meter NDJ-8S NDJ-8S Digital rotary viscometer is used for measuring the apparent and absolute viscosity of the liquid. The advanced mechanical design, manufacturing process, and microcomputer control make the data acquisition correct. The LCD display with blue back-light and high brightness makes the displayed data clear. Features Comparing with other similar products, this instrument has the following features: High measuring accuracy Stable


Rotary Viscometer Viscosity Meter w/ LCD Display Screen 1-1×10^5mPa·s
Rotary Viscometer Viscosity Meter w/ LCD Display Screen 1-1×10^5mPa·s
By U.S. Solid
In Stock
$549.00

mpn: USS-DVT4, ean: 0888107027638,

4.3 out of 5 stars with 258 reviews
The US Solid Rotary Viscometer w/ LCD Screen is a fluidity tester which tests flow and thickness of various liquids. With this tester you can do your testing your product right on your production line and determine whether it is up to the specifications. It has a LED screen to assess your readings instantly. This instrument uses micro computer technology. Rotor number and speed can be set and the data collected by a sensor and evaluated efficiently. The rotor number, speed, viscosity etc. are



Viewing Page 3 of 4

View more products in Test, Measure & Inspect.
Feel free to Browse Our Catalog.

Scroll to Top


Privacy Policy / Terms of Service / Accessibility Statement
© 2019 - inthenationalinterest.com. All Rights Reserved.