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Lab & Scientific Products - 14 - Super Savings! Save up to 39%


Super Savings! Up to 39% off on Lab & Scientific Products at Graph Barometer. Top brands include FS-TFC, Ade Advanced Optics, gebra, Oakton, TopOne, LuckyStone, GlowGeek, Dr.meter, HM Digital, HealthyWiser, ELEOPTION, Sonkir, GAONLY, Rozway, DIGITAL PH METER, Milwaukee, & Deronweer. Hurry! Limited time offers. Offers valid only while supplies last.



FS-TFC pH Meter Digital Water Quality Tester for Drinking Water, Swimming Pools, Aquariums, Hydroponics, Fish Tank,pH Measurement for 0-14.0 pH, 0.1 Accuracy, 0.1 Resolution (Yellow)
FS-TFC pH Meter Digital Water Quality Tester for Drinking Water, Swimming Pools, Aquariums, Hydroponics, Fish Tank,pH Measurement for 0-14.0 pH, 0.1 Accuracy, 0.1 Resolution (Yellow)
By FS-TFC
In Stock
$40.99
$25.99
You Save: 37%

mpn: PH-meter, ean: 0740528481348,

4.3 out of 5 stars with 57 reviews
Why need PH meter in life? One of the most common concerns of aquarists is pH. Some aquaria have pH that is too high, some too low. Some have pH just right, but don't know it. The first step in solving this problem is to ensure that you are measuring...


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,

4.1 out of 5 stars with 17 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...


PH Meter, Portable Digital Meter Calibration & Water Tester Meter with 0-14 PH Range, ATC 0.01, Glass Electrode for Laboratory Testing, Hydroponics, Cosmetics, SPA, Aquariums and drinking Water, etc
PH Meter, Portable Digital Meter Calibration & Water Tester Meter with 0-14 PH Range, ATC 0.01, Glass Electrode for Laboratory Testing, Hydroponics, Cosmetics, SPA, Aquariums and drinking Water, etc
By gebra
In Stock
$12.99

mpn: EEE5, ean: 0661273688984,

How to Use 1.Remove the protective cover 2.Press the swatch to "ON" 3.Soap the PH meter in the test liquid 4.Wait for a few seconds till the displayed value is stable Specification: Material: Plastic Measure Range: 0-14 PH Resolution: 0.01 PH Accurac...


Oakton 35423-01 Ecotestr Ph. 2+ Pocket Ph. Meter, 1.2'' Height, 1.8'' Wide, 6.4'' Length , 1.2'' Height, 1.8'' Wide, 6.4'' Length
Oakton 35423-01 Ecotestr Ph. 2+ Pocket Ph. Meter, 1.2" Height, 1.8" Wide, 6.4" Length , 1.2" Height, 1.8" Wide, 6.4" Length
By Oakton
In Stock
$69.00
$59.40
You Save: 14%

mpn: 35423-01,

4.7 out of 5 stars with 15 reviews
Simply dip and read the orientation of the display means no need to turn your head or tilt the Tester. This low-cost meter is perfect for most applications. The single-junction electrode is recessed to protect against breakage. The unit offers up to ...


TopOne Digital TDS Meter + PH Meter with Auto Calibration Button, Water Quality Test Kit 4 in 1 (TDS-2)
TopOne Digital TDS Meter + PH Meter with Auto Calibration Button, Water Quality Test Kit 4 in 1 (TDS-2)
By TopOne
In Stock
$25.99
$21.99
You Save: 15%

mpn: 43237-2,

4.6 out of 5 stars with 35 reviews
TDS Meter:1.Backlit LCD Screen: TDS≤40, the backlit color shows green; TDS>40, the backlit color shows red. 2.Hold Function:Short press at the Hold button to hold the value.3.Auto-Off Function:Turn off automatically in 2 Minutes to conserve batter...


Digital PH Meter PH-009 Pocket Size Water Quality pH Tester for Household Drinking Water, Hydroponics, Aquariums, Swimming Pools - Extra Two Packs of PH Calibration Solution Mixture
Digital PH Meter PH-009 Pocket Size Water Quality pH Tester for Household Drinking Water, Hydroponics, Aquariums, Swimming Pools - Extra Two Packs of PH Calibration Solution Mixture
By LuckyStone
In Stock
$12.99

mpn: SG6623169278, ean: 0620809000799,

This digital pen style pH meter is an ideal instrument for any aquarium, the fishing industry, swimming pools, school laboratories, food & beverage etc. All inspection qualified before shipment. Factory calibrated, it can be used immediately. Please ...


GlowGeek Digital PH Meter / PH Tester / Mini Water Quality Tester for Household Drinking Water, Hydroponics, Aquariums, Swimming Pools, 0.01PH Resolution - Extra PH Calibration Solution Mixture
GlowGeek Digital PH Meter / PH Tester / Mini Water Quality Tester for Household Drinking Water, Hydroponics, Aquariums, Swimming Pools, 0.01PH Resolution - Extra PH Calibration Solution Mixture
By GlowGeek
In Stock
$15.98

mpn: PH-Black-02,

Digital PH Meter Water Tester This pH meter is affordable and useful for those who need a PH tester for household and laboratory use. It's not only ideal for household or laboratory use. Also suitable for testing pH balance of drinking water, pool,...


Dr.meter 0.1pH PH002 High Accuracy pH Meter/pH Pen Tester with ATC LCD 0-14 pH Measurement Range (PH002 pH Meter for Water)
Dr.meter 0.1pH PH002 High Accuracy pH Meter/pH Pen Tester with ATC LCD 0-14 pH Measurement Range (PH002 pH Meter for Water)
By Dr.meter
In Stock
$38.99
$25.99
You Save: 33%

mpn: FBA_BCBI8148-1, ean: 6958446314424,

4.5 out of 5 stars with 30 reviews
Dr.meter- Ultimate Measure for Accuracy Specifications: Measuring range: 1-14 pH Resolution: 0.1 PH Batteries: 3x 1.5V LR44 button cell (AG13) Adjustment: trimmer potentiometer Automatic temperature compensation: 0-50°C (32-122°F) Dimensions: 1...


HM DIGITAL EC Meter EC-3M Electrical Conductivity Tester, Handheld Portable EC Temperature Water Test 0-9990 µS, 1µS Resolution, +/- 2% Readout Accuracy,With Leather case
HM DIGITAL EC Meter EC-3M Electrical Conductivity Tester, Handheld Portable EC Temperature Water Test 0-9990 µS, 1µS Resolution, +/- 2% Readout Accuracy,With Leather case
By HM Digital
In Stock
$21.69
$21.64

mpn: 9002, ean: 0603964473448,

FeaturesFor Commercial Use Includes a Case with belt clip Auto-off Function: Shuts Off Automatically After 10 Minutes of non-use Built-in digital thermometer Display: large LCD screen Factory Calibrated: factory calibrated to a 1.413 mS KCl solution....


Digital pH Meter - Pocket SIZE - pH Pen Tests Household Drinking Water, Aquarium, Swimming Pools, Hydroponics, Water Quality, with ATC, 0-14 pH Measuring Range with 6x pH Buffer Powders. Purple
Digital pH Meter - Pocket SIZE - pH Pen Tests Household Drinking Water, Aquarium, Swimming Pools, Hydroponics, Water Quality, with ATC, 0-14 pH Measuring Range with 6x pH Buffer Powders. Purple
By HealthyWiser
In Stock
$59.95
$37.95
You Save: 37%

mpn: FBA_646437231756, ean: 0646437231756,

4.0 out of 5 stars with 42 reviews
Tired of dealing with messy paper strips and chemicals to test your pH? If you have a pool, aquarium, or spa, pH testing is a way of life for you. But hassling with messy test strips and chemical solutions is a pain and may not give you the accuracy ...


ELEOPTION High Precision UV Strength Tester UV Meter Photometer UV Detector Handheld LCD Light 1000U W/CM2 Widely Used in School Family UV Strength Tester
ELEOPTION High Precision UV Strength Tester UV Meter Photometer UV Detector Handheld LCD Light 1000U W/CM2 Widely Used in School Family UV Strength Tester
By ELEOPTION
In Stock
$111.00
$74.99
You Save: 32%

mpn: 345TTRRY5443,

4.5 out of 5 stars with 51 reviews
Fucntion and feature 5 functions: month. date. hour. minute.second UV index meaturement from 0-20(0.5 increment) UVA and UVB. 30 second alarm sound selecable 12/24 hour formal 4-year calendar, alarm, chime enable/disable,LCD Test Operates with 2pcs.a...


Sonkir pH Meter, Digital pH Tester/Water Quality Tester for Drinking Water, Swimming Pools, Aquariums, Hydroponics, ATC Function, 0.1 Accuracy, Backlit LCD Display
Sonkir pH Meter, Digital pH Tester/Water Quality Tester for Drinking Water, Swimming Pools, Aquariums, Hydroponics, ATC Function, 0.1 Accuracy, Backlit LCD Display
By Sonkir
In Stock
$44.99
$29.99
You Save: 33%

ean: 0767665663796,

4.2 out of 5 stars with 53 reviews
Wide Applications It is widely applied to science laboratory, school education, commercial manufacture, industrial pollution controlling, agriculture etc . It is also suitable for testing pH values of household drinking water, RO system, hot tub, sw...


Digital PH Meter,PH Tester -Water, Pool,Fish Tank, Hydroponics, Education.3 x pH Buffer Powders, Automatic Calibration,Range 0.00-14.00 pH,ATC,Auto-shut off.Greeting card .Green.
Digital PH Meter,PH Tester -Water, Pool,Fish Tank, Hydroponics, Education.3 x pH Buffer Powders, Automatic Calibration,Range 0.00-14.00 pH,ATC,Auto-shut off.Greeting card .Green.
By GAONLY
In Stock
$44.68
$27.34
You Save: 39%

mpn: ph-2, ean: 0612953436098,

4.4 out of 5 stars with 14 reviews
The GAONLY pH meter is the instrument that measures pH in a solution, indicating its acidity or alkalinity The formal definition of pH is : pH = -log[H+] ,but you don't need to waste your time to calculate it anymore. * With GAONLY pH tester you get...


Pocket Size Digital pH Meter, Dr.meter 0.1 pH High Accuracy Water Quality Tester with ATC LCD 0-14 pH Measurement Range for Testing Water pH
Pocket Size Digital pH Meter, Dr.meter 0.1 pH High Accuracy Water Quality Tester with ATC LCD 0-14 pH Measurement Range for Testing Water pH
By Dr.meter
In Stock
$29.99
$21.99
You Save: 27%

mpn: BCBI8148-2,

4.7 out of 5 stars with 46 reviews
Dr.meter- Ultimate Measure for Accuracy Specifications: Measuring range: 1-14 pH Resolution: 0.1 PH Batteries: 3x 1.5V LR44 button cell (AG13) Adjustment: trimmer potentiometer Automatic temperature compensation: 0-50°C (32-122°F) Dimensions: 1...


Digital Pocket Size PH Meter/PH Tester/Water Quality Tester for Drinking Water, Hydroponics, Aquariums, Pools, Beer, Wine, Food, 0.01 PH Measurement - Extra PH Test Calibration Solution Pack
Digital Pocket Size PH Meter/PH Tester/Water Quality Tester for Drinking Water, Hydroponics, Aquariums, Pools, Beer, Wine, Food, 0.01 PH Measurement - Extra PH Test Calibration Solution Pack
By Rozway
In Stock
$22.95

mpn: RW-DPHM-2017, ean: 0643131918723,

Introducing The Rozway Digital Water pH Meter . Fast And Precise pH Measurement Whether you are dealing with Agriculture, Gardening or want to test the water supply, soil, your swimming pool/aquarium/other household use, test any solution or if you a...


Digital PH Meter, 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range, Water Quality Tester for Drinking Water, Aquariums, Swimming Pools Water PH Tester Design with ATC
Digital PH Meter, 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range, Water Quality Tester for Drinking Water, Aquariums, Swimming Pools Water PH Tester Design with ATC
By DIGITAL PH METER
In Stock
$28.99
$19.99
You Save: 31%

ean: 0752097660970,

4.6 out of 5 stars with 60 reviews
Color:2018-UPGRADE Yellow Digital PH Meter Water Tester The PH meter is a professional and handy tool to quickly and accurately get an indication for the ph level of the solution.It's not only ideal for household or laboratory use. Also suitable for...


HM Digital COM-100 Waterproof Combo Meter for EC, TDS and Temperature, 1-Pack
HM Digital COM-100 Waterproof Combo Meter for EC, TDS and Temperature, 1-Pack
By HM Digital
In Stock
$59.95
$54.99
You Save: 8%

mpn: COM-100, ean: 0891144000007,

4.4 out of 5 stars with 14 reviews
OM-100 Features: -Combo meter.-Electrical Conductivity Range: 0 - 9990 ?S; 0 - 9.99 Ms..-TDS Range: 0 - 8560 ppm (mg/L); 0 - 8.56 ppt..-Temperature Range: 0-80 degrees C; 32-176 degrees F..-Resolution: 0-99: 0.1 ?S/ppm/MS/ppt; 100-999: 1 ?S/ppm; 1000...


Milwaukee MW 500 Digital ORP Meter
Milwaukee MW 500 Digital ORP Meter
By Milwaukee
In Stock
$105.99

mpn: FBA_MW 500, ean: 0730792962629,



Digital Pocket Size PH Meter/PH Tester/Water Quality Tester for Drinking Water, Hydroponics, Aquariums, Pools, Beer, Wine, Food, 0.01 PH Measurement - Extra PH Test Calibration Solution Pack
Digital Pocket Size PH Meter/PH Tester/Water Quality Tester for Drinking Water, Hydroponics, Aquariums, Pools, Beer, Wine, Food, 0.01 PH Measurement - Extra PH Test Calibration Solution Pack
By Rozway
In Stock
$19.95

mpn: RW-DPHM-2017,

Introducing The Rozway Digital Water pH Meter . Fast And Precise pH Measurement Whether you are dealing with Agriculture, Gardening or want to test the water supply, soil, your swimming pool/aquarium/other household use, test any solution or if you a...


Deronweer Digital PH Meter, PH Test water 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)
Deronweer Digital PH Meter, PH Test water 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)
By Deronweer
In Stock
$13.99

mpn: unknown, ean: 7417603363044,

Deronweer Digital PH Meter Water Tester We have been tested in the production process calibration, Received PH mater can be used. Do not need to calibrate again. Specifications: *** Measuring range: 0.00-14.00 pH *** Resolution: 0.01 pH *** Accuracy:...



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