As an Amazon Associate I earn from qualifying purchases.

1. HM Digital


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

HM Digital #ad - From 0-999 ppm, the resolution is in increments of 10ppm, the resolution is in increments of 1ppm. Includes a tds chart sticker on the back of the meter that explains TDS values. Display: large and easy-to-read LCD screen.

Fun, translucent blue housing that's very strong and durable. Measurement range: 0-9990 ppm. From 1000 to 9990 ppm, indicated by a blinking 'x10' image. Hold function: saves measurements for convenient reading and recording and battery life is approx. Tds-ez meters are calibrated with a 342 ppm nacl solution. 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. Economy model that is ideal for end-users. Highly efficient and accurate due to its advanced microprocessor technology. 1000 hours of usage and power source is 2 x 1. 5v button cell batteries included LR44 or equivalent.
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, Bluelab PENCON Conductivity Pen Fully Waterproof Pocket Tester, CF, EC, PPM 700

Bluelab #ad - Complete your monitor and controller system with other testers and meters from Bluelab. 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. Other features: auto off function, low battery indicator, units for temperature; KIT INCLUDES: AAA battery. Conductivity pen can monitor your nutrient level to maximize your grow and ensure plants get the balanced feed they need; calibration optional.
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 temperature in ℃ / ℉switchable unit and can online monitoring for a long time. Widely used to measure the ph / Temperature / T-D-S Total Dissolved Solids of solution & water. Easy calibration of T-D-S with just a mini-screwdriver and automatic temperature compensation. 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.
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. 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.

There are no standards for producers or labelling requirements for sellers. Tester for vegetable and fruit--due to the dangers, most jurisdictions tightly control the nitrate content of meat products. 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. It has long been established that excessive nitrates are harmful to health. Tds water hardness test in 3 sec.

Nitrates significantly increase the risk of diabetes, Alzheimer's and Parkinson's disease and certain types of cancer. 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. Multifunctional tester--our company dedicates ourselves to changing the quality of life and protecting us and our children from the infringement of harmful impurities, has been developed, nitrates and nitrites. Food nitrate tester--nitrates cause serious disease.
BrandGreentest #ad
ManufacturerGreentest #ad
Part NumberGN-3

5. Bluelab


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

Bluelab #ad - Get answers at your fingertips. The bluelab combo meter Plus a simple quick start guide to help you get started fast. Featuring a detachable pH probe with simple, 2-point calibration makes for ease maintenance. Get up and running fast. 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.

Help your plants grow - fast, reliable and versatile: combo meter plus means you will be able to measure more and build a better understanding of your complete growing system. Plant health in the palm of your hand - manage, control & monitor your plant health & performance. Simple & easy to use - this device is all you need for simple, reliable nutrient solution and root zone management. 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, rockwool, coco coir and peat.

The versatile leap ph probe allows for pH measurement directly in the root zone area as well as in solution. Quick and intuitive to use with simple one button presses to change between measurements. Your order will include; 1x bluelab combo meter, 1 x conductivity / Temperature probe, 1 x Leap pH probe, 2 x AAA alkaline batteries, Simple to use instructions & BONUS Carry Case. Measuring is now possible at anytime and anywhere with this portable battery operated meter. 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.
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 - It saves you money and protects Your Health! Technical specs: accuracy: ± 2%. Range:0-5000ppm, 0-9990 µs/cm, 01-800°c, 32. 0-176. 0°f. Professional quality, unlike economy models available, you get What You Pay For! If you are looking for a Super Accurate and Reliable Meter, this is the one for You! Tds tells you when you need to change your Filters. 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. 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. Applications: great for student, professional and even personal used in achieving the correct pH and temperature level in water quality monitoring and analysis. Features: separate electrode to avoid contamination, composed of replaceable BNC type electrode and fixed temperature probe.
ManufacturerDANOPLUS #ad
Part NumberKIB-245

8. NU Aqua


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

NU Aqua #ad - High flow rate: at 100gpd this system doubles the output of standard under sink drinking water filtration systems while increasing contaminant rejection rates and providing a taste superior to bottled water this systems 5 stages ensure the highest standard of drinking water quality unparalleled by pitcher filters or countertop purifiers. 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.

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. Color coded tubing, quick connect fittings and simple design allows the system to fit under standard kitchen sinks. 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.

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. Free bonus ppm meters allows you test easily test your water quality. 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. Premium quality u.
BrandNU Aqua #ad
ManufacturerNU Aqua #ad
Height16.3 Inches
Length16.9 Inches
Weight20 Pounds
Width16.5 Inches
Part Number799789985164

9. ZeroWater


Blue, ZeroWater ZT-2 Electronic Water Tester

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