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1. HM Digital


1 ppm Resolution, 3% Readout Accuracy, 0-9990 ppm Measurement Range, HM Digital TDS-EZ Water Quality TDS Tester

HM Digital #ad - Economy model that is ideal for end-users. Display: large and easy-to-read LCD screen. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries.

Meters can be recalibrated with a mini-screwdriver. Measurement range: 0-9990 ppm. Tds-ez meters are calibrated with a 342 ppm nacl solution. Includes a tds chart sticker on the back of the meter that explains TDS values. Fun, translucent blue housing that's very strong and durable. 1000 hours of usage and power source is 2 x 1. 5v button cell batteries included LR44 or equivalent.

From 1000 to 9990 ppm, indicated by a blinking 'x10' image. Highly efficient and accurate due to its advanced microprocessor technology. Hold function: saves measurements for convenient reading and recording and battery life is approx. From 0-999 ppm, the resolution is in increments of 10ppm, the resolution is in increments of 1ppm.
BrandHM Digital #ad
ManufacturerHM Digital, Inc. #ad
Height6.1 Inches
Length1 Inches
Weight0.06 Pounds
Width1.25 Inches
Part NumberTDS-EZ

2. Bluelab


PPM 500, EC, Bluelab PENCON Conductivity Pen Fully Waterproof Pocket Tester, CF, PPM 700

Bluelab #ad - Conductivity pen can monitor your nutrient level to maximize your grow and ensure plants get the balanced feed they need; calibration optional.

Complete your monitor and controller system with other testers and meters from Bluelab. Other features: auto off function, low battery indicator, units for temperature; KIT INCLUDES: AAA battery. Made in new zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment; 1 Year Limited Warranty with proof of purchase. Auto temperature compensation makes this digital meter a handy tool with backlit LCD display and selectable units.
BrandBluelab #ad
ManufacturerBluelab Corporation Limited - Import (NZ) #ad
Height1.3 Inches
Length9.8 Inches
Weight0.24 Pounds
Width2.2 Inches
Part NumberBLU2221
WarrantyOne year free repair or replacement guarantee

3. Walmeck


Walmeck Digital Professional 3 in 1 pH/TDS/TEMP Meter Water Detector LCD Multi-function Multiparameter Water Quality Tester

Walmeck #ad - Test the t-d-s with both PPT and PPM unit at will. Imported ic and high cost performance, the electrode probe can be replaced. Easy calibration of T-D-S with just a mini-screwdriver and automatic temperature compensation. Widely used to measure the ph / Temperature / T-D-S Total Dissolved Solids of solution & water. Test temperature in ℃ / ℉switchable unit and can online monitoring for a long time.
BrandWalmeck #ad
ManufacturerWalmeck #ad
Part NumberOYA5926686582742TD

4. Greentest


Greentest Drinking Water Quality Tester TDS Meter Analyser PPM + Food Digital Detector Nitrate Tester for Fruit,Vegetable,Meat Water and Fish

Greentest #ad - Food producers who add nitrates to meat must comply with strict regulations and labelling requirements. Unfortunately nitrate levels in fresh fruit and vegetables are unregulated and unchecked in most places. As a result, a revolutionary new food safety testing device Greentest, which allows detecting fruits and vegetables cultivated improperly and evaluating the concentration of nitrates.

It has long been established that excessive nitrates are harmful to health. Nitrates significantly increase the risk of diabetes, Alzheimer's and Parkinson's disease and certain types of cancer. Tester for vegetable and fruit--due to the dangers, most jurisdictions tightly control the nitrate content of meat products. Tester for meat--the device has a database of the 56 most common fruit and vegetables and is calibrated based on more than 1000 tests in leading laboratories specialised in spectrometric equipment.

Some researchers believe that the dramatic rise in cancer of the esophagus recorded over recent decades can be attributed to excessive nitrates in fruit and vegetables. Food nitrate tester--nitrates cause serious disease. Drinking water quality meter tds tester -- greentest is a modern device for rapid analysis of nitrate content in fresh fruit, vegetables, fish and meat in 3 seconds. Tds water hardness test in 3 sec.
BrandGreentest #ad
ManufacturerGreentest #ad
Part NumberGN-3

5. Bluelab


Bonus Carry Case Included, Handheld Digital Hydroponic Nutrient and pH Meter for Measuring pH Levels, Conductivity & Temperature in Soil & Plants, Accurate pH Measurements, Bluelab Combo Meter Plus

Bluelab #ad - Your order will include; 1x bluelab combo meter, 2 x aaa alkaline batteries, 1 x conductivity / Temperature probe, 1 x Leap pH probe, Simple to use instructions & FEATURES - The Bluelab Combo Meter Plus is a pH conductivity & BONUS Carry Case.3 in 1 nutrient solution measurement - measures three key parameters to ensure your nutrient solution is at the right level and available to your plants.

Measuring is now possible at anytime and anywhere with this portable battery operated meter. Get answers at your fingertips. Simple & easy to use - this device is all you need for simple, reliable nutrient solution and root zone management. This 3 in 1 device will measure your pH levels, nutrient levels & temperatures directly in your solution, to optimise nutrient availability through the growing system. Featuring a detachable pH probe with simple, 2-point calibration makes for ease maintenance. The multimedia leap ph probe can be used to measure nutrient solution and directly in the rootzone in a range of growing substrates including soil, coco coir and peat.

World class quality & temperature meter all in one for testing soils & plants. The bluelab combo meter Plus a simple quick start guide to help you get started fast. The versatile leap ph probe allows for pH measurement directly in the root zone area as well as in solution. The bluelab combo meter plus device will fit in the palm of your hand which will allow you to spot check wherever you are! The backlit, easy-to-read display and 2m/6’ cables give you the ability to measure in places previously inaccessible.
BrandBluelab #ad
ManufacturerBluelab #ad
Height2.95 Inches
Length8.66 Inches
Weight1.47 Pounds
Width4.72 Inches

6. Sunny Digital


Water Test Meter. Professional TDS EC & Temperature Meter. 3-in-1.! Accurate and Reliable Water Test Meter. With Protective Leather Case.

Sunny Digital #ad - Professional quality, you get what you pay for! if you are looking for a Super Accurate and Reliable Meter, unlike Economy models available, this is the one for You! Tds tells you when you need to change your Filters. Range:0-5000ppm, 0-9990 µs/cm, 01-800°c, 32. 0-176. 0°f. It saves you money and protects Your Health! Technical specs: accuracy: ± 2%. Last tds meter you'll have to buy, we're so confident we offer a 100% Money Back Guarantee for Life! .
BrandSunny Digital #ad
ManufacturerDigital Aid #ad
Height0.75 Inches
Length6 Inches
Weight0.15 Pounds
Width1 Inches
Part NumberTDS&EC-S



2-in-1 Combo pH & Temperature Meter Water Quality Tester Replaceable BNC pH Electrode for Aquariums Hydroponics Tanks Aquaculture Laboratory

DANOPLUS #ad - Power supply: 4 x 1. 5v ag13 button battery or 6V DC power adaptor ideal for continuous monitoring. Features: separate electrode to avoid contamination, composed of replaceable BNC type electrode and fixed temperature probe. Applications: great for student, professional and even personal used in achieving the correct pH and temperature level in water quality monitoring and analysis. Measuring range: 000~14. 00ph and 0~55°c 32~131°f temperature with ATC so temperature change can't affect on pH level measurement.
ManufacturerDANOPLUS #ad
Part NumberKIB-245

8. NU Aqua


NU Aqua Platinum Series Deluxe High Capacity 100GPD 5-Stage Under Sink Reverse Osmosis Ultimate Purifier Drinking Water Filter System, Bonus PPM Meter and Installation DVD

NU Aqua #ad - Color coded tubing, quick connect fittings and simple design allows the system to fit under standard kitchen sinks. Our carbon filters provide a higher absorption rate due to the molecular structure of the pores becoming more permeable which allows even the smallest of particulates to be efficiently removed from your water.

Cutting edge hydracoil technology: hydracoil utilizes a specialty technology manufacturing process for up to 50% cleaner water than comparable systems. Brand: the nu aqua platinum series has gone through rigorous development and testing in our lab to provide consistent great tasting, clean and healthy water on demand. Free bonus ppm meters allows you test easily test your water quality. This allows the system to provide up to a 99% rejection rate of 1000+ contaminants such as arsenic, fluoride, chlorine, and lead. Featuring professional grade high quality quick connect fittings, an elegant NSF 100% lead-free designer faucet to keep your counter top looking great and double o-ring sealed filter housings to provide a guaranteed leak free experience.

Industry leading 5 year warranty: backed by an industry leading 5 year manufacture warranty and lifetime support the NU Aqua Platinum comes with the industries best support and a satisfaction guarantee. Premium quality u. S. Free bonus installation dvd and ppm meter: extremely easy do-it-yourself installation can take less than 1 hour with the provided step by step installation DVD or the easy to follow installation manual.
BrandNU Aqua #ad
ManufacturerNU Aqua #ad
Height16.3 Inches
Length16.9 Inches
Weight20 Pounds
Width16.5 Inches
Part Number799789985164

9. ZeroWater


ZeroWater ZT-2 Electronic Water Tester, Blue

ZeroWater #ad - Measure total dissolved solids in water. Compare water samples. Get the lead out: zerowater filters are the only pour-through filters NSF Certified to remove chromium & lead. Know exactly when to change filters. Our pitchers, tumblers, & dispensers remove virtually all solids for the purest tasting water. Easy to Use.
BrandZeroWater #ad
ManufacturerZero Technologies, LLC #ad
Height5 Inches
Length6 Inches
Weight0.08 Pounds
Width7 Inches
Part NumberZT-2