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Water Quality & Instrumentation - Mega Sale! Save up to 26%


Mega Sale! Up to 26% off on Water Quality & Instrumentation at In The National Interest. Top brands include Hach Company, KUNHEWUHUA, U.S. Solid, Hanchen, Oakton, YSI, Myron L, & Thermo Scientific Orion. Hurry! Limited time offers. Offers valid only while supplies last.



Hach 5870004 Pocket Colorimeter II, Ozone
Hach 5870004 Pocket Colorimeter II, Ozone
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
In Stock
$685.20

mpn: 28033, ean: 6662783193146,

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 m...


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
In Stock
$549.00

mpn: USS-DVT4, ean: 0888107027638,

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 specificati...


Hanchen TDS-100H-M2+S1 Handheld Ultrasonic Flow Meter Flowmeter Clamp on Sensor (DN15-700mm)
Hanchen TDS-100H-M2+S1 Handheld Ultrasonic Flow Meter Flowmeter Clamp on Sensor (DN15-700mm)
In Stock
$759.00

mpn: HQ-4, ean: 7868047167567,

After your order is confirmed, the product will reach you within 7--13 business days.DescriptionUltrasonic Flow Meter/ultrasonic flowmeter/flowmeter  Hand Hold Ultrasonic Flow Meter Nonwetted measurement, small in size Technical Datas  Linearity...


Oakton Instruments WD-35419-10 Series pH 700 Benchtop Meter with Double-Junction Glass pH Electrode, ATC Probe and Stand, 110/220 VAC
Oakton Instruments WD-35419-10 Series pH 700 Benchtop Meter with Double-Junction Glass pH Electrode, ATC Probe and Stand, 110/220 VAC
In Stock
$692.00
$512.19
You Save: 26%

mpn: WD-35419-10,

4.7 out of 5 stars with 49 reviews
Oakton Instruments WD-35419-10 Series pH 700 Benchtop Meter with Double-Junction Glass pH Electrode, ATC Probe and Stand, 110/220 VACCompact footprint is over 40% smaller than other bench top meters. Large display permits easier readout viewing. Data...


YSI 6050020 Pro20 Dissolved Oxygen Meter, waterproof
YSI 6050020 Pro20 Dissolved Oxygen Meter, waterproof
By YSI
In Stock
$589.33
$575.02
You Save: 2%

mpn: 5935204,

The ysi professional Series provides plug-and-play capabilities to give you a meter with as much functionality as needed. Build your own system by ordering the meter, probes), and cables) you need without having to purchase additional meters or unnec...


Oakton pH 700 Benchtop Meter with Probes and Stand
Oakton pH 700 Benchtop Meter with Probes and Stand
In Stock
$622.70
$603.00
You Save: 3%

mpn: AO-35419-10,

4.5 out of 5 stars with 28 reviews
The easy-to-use, microprocessor-based pH 700 Bench top meter measures pH, mV, relative mV, and temperature. The large, dual-display LCD provides excellent visibility-even from a distance. Automatic temperature compensation (ATC) maintains reading acc...


Oakton PC700 PC 700 Benchtop Meter with Electrode Stand
Oakton PC700 PC 700 Benchtop Meter with Electrode Stand
In Stock
$787.25
$740.70
You Save: 6%

mpn: AO-35413-20,

4.1 out of 5 stars with 25 reviews
The PC700 meter offers a new compact design that is over 40 percent smaller than other benchtop meters. The large display is easy to read even at a distance. Dual-display allows you to read both a measured parameter and temperature at a glance. The m...


YSI DO200A Dissolved Oxygen Meter with Temperature Compensation, Includes Probe with 4-Meter Cable and Fitted Case
YSI DO200A Dissolved Oxygen Meter with Temperature Compensation, Includes Probe with 4-Meter Cable and Fitted Case
By YSI
In Stock
$630.00
$598.50
You Save: 5%

mpn: 606072,

4.3 out of 5 stars with 30 reviews
Dissolved oxygen (DO) meters measure the amount of dissolved oxygen present in water. The amount of DO helps to determine, for example, drinking water quality, the health of lakes or streams, and aquatic organism sustainability. A probe, also called ...


Myron L 4PII Conductivity, Resistivity, TDS, Temperature Meter
Myron L 4PII Conductivity, Resistivity, TDS, Temperature Meter
In Stock
$755.00

mpn: 4PII,

Both Ultrameter II models deliver exceptional accuracy of ±1% of reading (not merely full scale). This high level of accuracy is achieved through advanced four-electrode conductivity cell technology, a powerful microprocessor, proprietary circuit de...


YSI Pro20 Lab/Field Dissolved Oxygen/Temperature Meter, 0 to 50 mg/L, 0.1 mg/L, 0 to 20 mg/L, -5 to 55 degree C, 8-1/2'' Length x 3-1/4'' Width x 2-13/64'' Depth
YSI Pro20 Lab/Field Dissolved Oxygen/Temperature Meter, 0 to 50 mg/L, 0.1 mg/L, 0 to 20 mg/L, -5 to 55 degree C, 8-1/2" Length x 3-1/4" Width x 2-13/64" Depth
By YSI
In Stock
$560.00
$532.00
You Save: 5%

mpn: 6050020,

4.9 out of 5 stars with 58 reviews
The YSI Pro20 instrument is a handheld dissolved oxygen (DO) and temperature meter with graphical backlit display, glow-in-the-dark keypad, rubber over-mold case, military standard connectors, and One Touch Cal feature that calibrates the meter withi...


Thermo Scientific Orion Star A211 Benchtop pH/ISE/mV/Temperature Meter
Thermo Scientific Orion Star A211 Benchtop pH/ISE/mV/Temperature Meter
In Stock
$749.69

mpn: STARA2110,

This Thermo Scientific Orion Star A211 pH Benchtop Meter is the ideal choice for any lab. Get the information you need quickly and easily from the large, backlit graphic LCD display. Informative display shows pH/mV/RmV and temperature along with elec...



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