Best Portable Conductivity Meter

AERO-GRO 5-in-1 TDS/pH Meter - IP67 Waterproof 5 Functions pH TDS EC Salinity Temperature 0.01 Resolution High-Accuracy Pen-Type Tester for Hydroponics Water Wine Spas Aquariums White

[5-in-1 pH METER] - Meter has a five-in-one function, which can measure PH, TDS, EC (Electrical Conductivity), Salinity %, Salinity ppm, and....
[Accurate pH Tester] - Featuring a solid glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. The pH meter uses a 3-point....
[TDS Measurement] - Fast and accurate TDS / PPM testing for hydroponics or anywhere TDS is critical. The TDS Range is 0~10,000ppm. Accuracy is ±2%..
[EC Measurement] - Measure Electrical Conductivity of either fresh or salt water..
[Saline % and Saline ppm Measurement] - Conveniently and easily keep track of saline levels by either percentage or ppm. Great for aquarium, saltwater....

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PH Meter Digital TDS Meter EC & Temperature Test Meter 4 in 1 Set, 0.01 High Accuracy PH Tester Pen Water Quality Tester for Household Drinking, Pool and Aquarium

【Multifunction PH Meters Suit】 with TDS PH EC temperature accuracy, faster for aquariums, pools, spas,etc..
【To calibrate the pH Tester】 Calibration does not require a screwdriver. The pH meter with ATC can automatically calibrate. To maximize convenience, simply press the Calibration key.
【High accuracy】The numbers of the pH meter range from 0.00-14.00 (PH), while the numbers of the digital EC and TDS meters range from 0 to 19990 ppm. PH Resolution is 0.01pH, Accuracy ± 0.05pH.TDS: 0 ~ 9990ppm, Conductivity: 0 ~ 9990us / cm, Accuracy: ± 2%.
【TDS have lock & auto-shut off function】 Conductivity meter has the accuracy of 0.1 ℃. Dump the item about 4 seconds in the liquid to get accurate values. In order to record the number, you can also Press the HOLD keyboard.
【LCD Display】The LCD clearly displays the data and the LCD backlight turns off automatically. Small and easy to carry. 365 days for a worry-free return service.

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Diamond Selector II Test Kit - Jewelry Gold Gem Tester Tool LED Electronic Gemstone Pen Testers with Case Professional Tools Jade Ruby Stone Devices for Jewelers Precious Metal Verifier Gems Detector

✅ DETECTION WAY: The tester indicates genuine diamond or fake. The thermal conductivity meter is designed and manufactured according to the thermal conductivity of diamond. The fake crystal, a simulant such as cubic zirconia does not have any reaction..
✅ TESTER SIZE: The tool dimensions are 6.6 IN long, 1.6 IN wide, and 0.8 IN thick. The portable gadget is lightweight, matched with a practical carrying case..
✅ RESULT INDICATOR: There are the LED indicator and the audible signal A red light will be displayed and an audible indicator will sound if the stone is a real diamond..
✅ EASY TO OPERATE: Simple calibration for stones of various sizes. Easy to use even for a new beginner. It is also a great tool to have when testing your own jewelry..
✅ CHECKING GEM: The selector is mainly used for industrial purposes, circuit boards, and printing, industry, gardening, coin, diamond, stamp, jewelry, appraisal, education, geography, home, and office..

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HM Digital 1000ppm TDS Calibration Solution

For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges.
Comes in lightweight HDPE plastic bottles.
Laboratory quality NIST-traceable solutions.
Any brand TDS meter can be calibrated to any brand of calibration solution.
Bottles have a convenient wide mouth, allowing a user to simply insert the meter into a stable bottle.

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RaeSung AZ86031 Water Quality Meter Dissolved Oxygen Tester pH Meter pH Conductivity Salinity Temperature Meter

AZ86031 Handheld IP67 Combo PH/COND./SALT/TDS/D.O was being designed and manufactured by AZ Instrument, a well experienced manufacturer for Environmental Measuring Instrument..
Water Quality Meter, also been called as Water Testing Device or Water Quality Testing Device, it’s the device that measure the value of pH, Cond. (Conductivity), Salinity, TDS and D.O. (Dissolved Oxygen) in liquid, which had been widely used by Aquaculture, Aquaponics or Fish Farm..
Multiple points calibration: 3 points for pH, 1point for D.O.,4 points for conductivity..
Large LCD with multiple parameters display simultaneously..
pH, Conductivity or Salinity or TDS, Dissolved oxygen & Temperature..

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ZLYCZW 3 in 1 Multifunctional Water Quality Detector IP67 Handheld PH Meter Dissolved Oxygen/Conductivity/Salinity Test Dissolved Oxygen Meter

★ Water Quality Meter, also been called as Water Testing Device or Water Quality Testing Device, it’s the device that measure the value of pH,....
★ Conductivity, Salinity, TDS and D.O. Dissolved Oxygen in liquid, which had been widely used by Aquaculture, Aquaponics or Fish Farm..
★ Handheld IP67 Combo PH/COND./SALT/TDS/D.O was being designed and manufactured by well experienced manufacturer for Environmental Measuring....
★ Large LCD with multiple parameters display simultaneously: PH, Conductivity or Salinity or TDS, Dissolved oxygen & Temperature..
★ Multiple points calibration: 3 points for pH, 1point for D.O.,4 points for conductivity..

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Hofun High Accuracy TDS Meter Digital Water Tester Water Quality Tester with True ATC 3 in 1 TDS EC & Temp Meter PPM Water Testing Kits for Drinking Water Tap Well RO/DI System Hydroponics

✔UPGRADED MULTIFUNCTIONAL WATER TESTER: Hofun 3 in 1 TDS Meter, Electric Conductivity Meter & Temperature Meter features the most updated....
✔ACCURATE & QUICK MEASUREMENT BY RELIABLE TDS WATER TESTER: Hofun drinking water test kit is equipped with premium quality titanium alloy probe for....
✔EASY READING AND INSTANT RESULTS: Hofun ppm water tester meter is designed with super easy operation. You just turn TDS meter on and stir water....
✔MULTIPURPOSE DIGITAL TDS WATER TESTER METER: With the help of Hofun water test kits for drinking water, it's more convenient for you to test the....
✔YOUR PURCHASE IS WELL-PROTECTED: Hofun water hardness tester digital is manufactured under extra high standards and of super good quality. Thus we....

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TDS Meter Digital Water Tester - PPM Quality Testing Tool 3-in-1 (TDS, EC & Temp) High Accuracy ATC Tester, Nutrient Testing Pen for Hydroponics, Monitor Ro System, Pools, Aquariums & Saltwater Tanks

HOLD AND AUTO-OFF FUNCTIONS: the 7Pros TDS meter has data-hold function, it locks your readings making it easy to record. The EC Meter will automatically shut down after 9 min of inactivity.
FACTORY CALIBRATED: our ppm meter is factory-calibrated at 342 ppm NaCl and designed to stay consistent.
ACCURATE: TDS readings are adjusted with automatic temperature compensation, assuring users of consistent and accurate measurements of total dissolved solids.
EASY TO USE: The tds meter digital water tester will get your testing results in seconds. Turn on, immerse the electrode in the testing liquid, press Hold button and read the numbers.
WIDE USE: Our conductivity meter is Ideal for all water quality testing, its a ppm meter for hydroponics, water purification applications, aquariums and saltwater tanks, wastewater regulation, aquaculture, laboratory and scientific testing, pools, ecology testing, colloidal silver, water treatment, etc..

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Hofun TDS Meter, 3 in 1 TDS, EC & Temperature Meter, Accurate & Reliable PPM Meter, Digital Water Testing kits for Drinking Water Quality, Tap, Well, Swimming Pool, Aquarium, RO/DI System, Hydroponics

...ich enables quick and convenient water total dissolved solids(tds) test. 0-9999ppm wide test range makes it fits multiple uses, like drinking water test, swimming pool, hot tub, laboratory, hydroponics, aquariums, well water, tap water, etc..
✔[ BONUS 3 in 1 TDS , EC & TEMP METER ] Hofun 3 in 1 TDS Meter, Electric Conductivity Meter & Temperature Meter features the most updated technology. Three different measurement needs can be fulfilled by one water tester meter. Not only been convenient for you, but also saves your time and money, absolutely a helpful water test kit for your water safety at home..
✔[ EASY READING BIG BACKLIT LCD DISPLAY & QUALIFIED WATER TELLER ] Hofun water hardness test meter with Big Backlit LCD is far superior than most digital water quality tester display, which allows wider angles of data reading and night reading. Besides, Red backlight ( ppm figure over 40 ) means non-drinking water. Green backlight ( ppm figure below 40 ) indicates TDS figure qualified for direct drinking water (Notes: International standard adopted TDS figure 40 as a dividing line.).
✔[ EASY OPERATION & ENERGY SAVING ] Hofun ppm meter allows one button operation, just turn it on and put tds meter into water, you can get stable and accurate data in se....

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