pH Testing & Control / Indoor Gardening & Hydroponics - Super Savings! Save up to 34%


Super Savings! Up to 34% off on pH Testing & Control (in Indoor Gardening & Hydroponics) at Ultimate Garden Supply [66]. Top brands include Bluelab, Oakton, VEVOR, QUSTSELL, HT-DD, JNW Direct, Macherey-Nagel, ORYCOOL, Bartovation, Digital Aid, Milwaukee, Industrial Test Systems, Spurtar, TEKCOPLUS, Festnight, & LaMotte. Hurry! Limited time offers. Offers valid only while supplies last.



Bluelab CONTPH pH Controller with Hands Free Monitoring and Dosing of Solution
By Bluelab
In Stock
$371.01
$364.95
You Save: 2%

mpn: BLU8004, ean: 9421024920678,

4.5 out of 5 stars with 53 reviews
Hands-free monitoring and dosing of solution pH levels.Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal/760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read displays• Easy to navigate menu to program and adjust settings• Simple push button pH calibration with on screen guide• Flashing high/low alarm with control lockouts• Dosing lockouts to protect from over-dosing• Auto resume dosing on restart after power


Oakton Waterproof pH1 EcoTster Solution
By Oakton
SKU: #FHHYMS0187
In Stock
$71.95
$63.45
You Save: 12%

sku: FHHYMS0187, mpn: ph1, ean: 0870883002381,

4.2 out of 5 stars with 9 reviews
OAKTON's new EcoTestr is economical and easy to use. With its crystal clear, ergonomically designed display, you can easily view measurements at a glance. Each rugged tester has waterproof and dustproof housing for use in dirty and damp field conditions. Simply dip and read-the orientation of the display means there's no need to turn your head or tilt the tester. Single-junction electrode is well-suited for general purpose applications. Recessed bulb with bulb guard protects against breakage. On


Oakton AO-35613-22 pH 6+ Handheld Meter with pH Probe
By Oakton
In Stock
$287.30
$277.16
You Save: 4%

mpn: AO-35613-22,

4.8 out of 5 stars with 58 reviews
These meters are perfect for fast, accurate results. Automatic temperature compensation (atc)ensures accuracy from 0 to 100°c. Meters include a protective rubber boot that also acts as a meter stand. What's included: ATC probe, protective rubber boot, and batteries. High +/-0.01 pH accuracy at an economical price convenient, compact design up to five-point push-button calibration with auto buffer recognition displays pH or mV and temperature with the press of a buttonProduct Type: pH meter. Met


Bluelab Guardian Monitor CONNECT Version
By Bluelab
In Stock
$282.43
$278.94
You Save: 1%

mpn: MONGUACON, ean: 0798527631066,

4.2 out of 5 stars with 53 reviews
The Bluelab® Guardian Monitor Connect is not only a constant indicator of the desired levels of pH, conductivity and temperature of your nutrient solution, it also data logs these critical parameters to your computer for you. It does not stop there. You can access the data via the cloud from a remote mobile device or computer to check for extreme variances to ensure these critical parameters are hitting the mark for crop success. Just one Bluelab® Connect Stick is required to receive wireless


VEVOR Moisture Analyzer 0.5g-50g Lab Moisture Analyzer with Halogen Heating for Rapid Moisture Test
By VEVOR
In Stock
$599.99

mpn: moisture analyzer, ean: 0601707120291,

4.3 out of 5 stars with 42 reviews
FeatureLCD screen with clear back light to read.Test display: moisture content, solid content, time, temperature, weight etc.Sample weight 50g-0.5g, readability 0.01g.High sensitive sensor, accurate & efficient measuring results.Heating temperature adjustable between: 50℃-180℃, heating time adjustable: 1-99 minutes.Standard RS232 port, can connect printer, computer etc.Halogen heating, fast temperature rise with heating uniformity, energy-saving and make testing time short.Beeper reminds aft


Digital PH Meter, 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range for Household Drinking, Pool, Hydroponics and Aquarium Water PH Tester Design with ATC
By QUSTSELL
In Stock
$12.99

ean: 0713091333727,

4.2 out of 5 stars with 36 reviews
Digital PH Meter Water Tester -Your Water Quality Heath Analysis of Ace Our 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, aquarium, food Project, RO system, Spa or hydroponics. Features:►High Quality and DurableOur PH Meter is highly accurate for measuring range of 0-14 PH, 0.1 PH resolution, measure & display pH result simultan


Digital PH Meter PH Tester 0.01 PH High Accuracy Water Quality Tester with ATC for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics (Yellow)
By HT-DD
In Stock
$12.99
$11.99
You Save: 8%

mpn: 1975110903, ean: 0661066477375,

4.2 out of 5 stars with 29 reviews
PH Meter Introduction: This PH Meter is the perfect device for determining the acidity or alkalinity of liquids.immerse the ph tester in the solution until numbers get stable It's incredibly easy to use. . Applied range: the production and drinking of purified water, Electroplating liquid, Boiler water, Water in fish tank, Water of swimming pools, Photograph flushing fluid, Well water, Deep phreatic water, Laboratory, Aquaculture, Food processing, etc Specifications: Display: LCD Digital, Measu


JNW Direct Drinking Water Test Kit for Lead, Iron, Mercury, pH, Hardness and More, Water Test Strips Kit for Testing to EPA Standards, Easy, Instant and Accurate
By JNW Direct
In Stock
$14.98
$11.98
You Save: 20%

mpn: Comprehensive-Water-Test-Kit,

4.4 out of 5 stars with 54 reviews
The ultimate at home testing kit, low level detection high sensitivity test to check your drinking water. Our kit tests for:Lead: (0, 5, 15, 30, 50 PPB)Iron: (0, 0.3, 0.5, 1.0, 3.0, 5.0 PPM)Copper: (0, 0.05, 0.1, 0.2, 0.4, 1, 2 PPM)Mercury: (0, 0.002, 0.005, 0.01, 0.02, 0.04, 0.08 PPM)Fluoride: (0, 0.5, 1.0, 2.0, 5.0 PPM)pH: (6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0)Total Alkalinity: (0, 40, 80, 120, 180, 240, 400 PPM)Total Hardness: (0, 25, 50, 120, 250, 425 PPM)Free Chlorine: (0, 0.5, 1, 3, 5, 10, 20


Macherey-Nagel 92110 0-14 pH Indicator Strips 100/Box
By Macherey-Nagel
In Stock
$14.79
$11.90
You Save: 20%

mpn: FBA_92110, ean: 0884585910776,

4.4 out of 5 stars with 56 reviews
Always ready for use. pH-Fix test strips are used for rapid pH testing directly at the point of interest. They are always ready for immediate use. Coming with a complete color chart the test strips are already calibrated. As single use devices they are completely maintenance free. For careful testing of dangerous, poisonous or aggressive liquids the strips have the optimal design. The longest available handle effectively protects the user from contact with the sample. This increases the safety o


PH Meter ORYCOOL 0.01 Resolution Digital PH Tester Pen 0.00-14.00 PH Range with Automatic Calibration Function for Drinking Water Swimming Pools Spas Aquarium Hydroponics
By ORYCOOL
In Stock
$11.99

mpn: OPHM01,

4.4 out of 5 stars with 10 reviews
Calibration Instructions If you know that you will be testing for acidity, you will usethe 6.86 solution and the 4.0 solution. If you know that you will be testing for alkalinity you will usethe 6.86 solution and the 9.18 solution. If unsure, it is recommended using the 4.0 solution as thesecond point of calibration.Step 1: Mix each of the two chosen buffer powders in 250ml (approximately one cup) of distilled or deionized water. Step 2: Insert the tip of the pH meter into the 6.86 solutionand p


Super Taster Test Genetics Lab Kit with Instructions, Phenylthiourea (PTC), Sodium Benzoate, Thiourea and Control [Each Vial Includes 100 Paper Strips]
By Bartovation
In Stock
$15.49

mpn: PGE99K, ean: 0640746517365,

4.9 out of 5 stars with 23 reviews
This product is all you need for a demonstration of genetics and heredity. These strips can be used to help determine if a person is a 'supertester' and can be used to effectively demonstrate the effects of heredity on taste. Use these strips to determine genotype and phenotype, and use the control (untreated paper) as a placebo to add validity to your experiment. The set includes one vial of each of the following: PTC (pheylthiocarbamide), sodium benzoate, thiourea, and control paper and also i


Digital Aid pH Meter. Professional Quality Water Test Meter by Large Backlit LCD Screen. Range 0.00 to 14.0 pH. 3 Free Buffer Solution Powders. Plus get 6 More - See Below.
By Digital Aid
In Stock
$14.87

mpn: HQ-02, ean: 0609408840432,

4.9 out of 5 stars with 10 reviews
This pH Meter has all the features you need for commercial or household use:Water purification applications, waste-water regulation, aquaculture, hydroponics, labs & scientific testing, pools & spas, ecology testing, wine making, agriculture and much more. Features: Large and easy-to-read Backlit LCD screen Auto-off function and low-battery indicator Factory calibrated at 4.00, 6.86 and 9.18pH Meter can easily be re-calibrated in the field Includes a protective cap/sleeve and batteries Get


Milwaukee Instruments pH600AQ pH Tester with 1 Point Manual Calibration
By Milwaukee
In Stock
$31.99
$21.00
You Save: 34%

mpn: pH600-Box, ean: 0810666001606,

4.2 out of 5 stars with 48 reviews
The Milwaukee Instruments pH600 is a compact pH tester with a narrow probe for use in small samples or test tubes, and has manual two-point calibration, a single-line LCD screen, a replaceable electrode, and a low power demand. A pH meter is commonly used to measure the pH of substance such as water, food, beer, or wine in laboratory, industrial, and food applications. The single-line LCD screen of this meter shows the current measurement. The meter has manual temperature compensation and manual


Industrial Test Systems 481348 Copper 3 in 1 Pool Check
By Industrial Test Systems
In Stock
$18.40
$17.49
You Save: 5%

mpn: 481348, ean: 0809762813480,

4.6 out of 5 stars with 11 reviews
Pool Check Copper 3 in 1 is a complete source for pool & spa testing. Measuring for 3 of the most important pool & spa parameters when using copper ionization for sanitizing. Pool Check Copper 3 in 1 is ideally suited for the demanding pool & spa owner who is concerned with proper pool & spa maintenance.Copper: 0, 0.2, 0.4, 0.6, 0.8, 1, 2 ppm. PH: 6, 6.4, 6.8, 7.2, 7.6, 8.2, 9. Total Alkalinity: 0, 40, 80, 120, 180, 240, 360 ppm. Simple 20 second test. Bottle of 50 test strips.


Spurtar 2Pcs Water Quality Test Meter TDS PH EC Temperature 4 in 1 Set High Accuracy Measurement Range, Auto Calibration Ideal kit for Hydroponics, Aquariums, Drinking Water, Ro System, Pool...
By Spurtar
In Stock
$16.28

mpn: TDS&PH, ean: 0696177830689,

4.3 out of 5 stars with 8 reviews
PH Meter:  Measure Range : 0.00 - 14.00 pH Resolution : 0.01 pH Accuracy : 0.05 pH Calibration: Two Points Automatic Calibration Button Power Supply: 2 x 1.5V LR44 Button Battery (keep using more than 500 hours) Dimension: 155mm * 31mm * 18mm / 6.10inch * 1.22inch * 0.71inch 3-in1 TDS EC Temperature Meter: Lock function - makes it easy to read and record, the instrument will lock the reading result. After the numerically result gets stable, press HOLD button then remove the meter out of test s


Peracetic Acid Test Strips, 0-160 ppm [Double Comparable Offers, Vial of 100 Strips]
By Bartovation
In Stock
$16.39

mpn: PPA03V100, ean: 0643845994891,

4.8 out of 5 stars with 10 reviews
Detects For Peracetic Acid Concentration This test strip is calibrated at 0, 10, 20, 50, 85, and 160ppm, and gives results in just seconds. Peracetic acid is another sanitizing agent primarily used in some segments of the food industry, such as organic produce and poultry. Check with your local health inspector to determine what ppm level you should be reaching. Instructions: Remove one test strip from the vial, being careful not to touch the test pad with your fingers. Dip the test strip into t


BlueLab PH Down Solutions, 1 Gallon
By Bluelab
In Stock
$40.95

mpn: 716349, ean: 9421024920715,

4.8 out of 5 stars with 50 reviews
Our new pH Up and pH Down solutions can be used undiluted with the Bluelab pH Controller and Bluelab pH Controller Connect. They're manufactured with premium quality acid/alkali concentration.Can be used undiluted with the Bluelab pH Controller and Bluelab pH Controller Connect. They're manufactured with premium quality acid/alkali concentration. Has excellent quality. Brand: BlueLab.


3 in 1 pH/EC/Temp Meter ATC Waterproof with black-light Water Quality Combo Multi-Parameter Tester Monitor Analyzer Test Kit for Aquariums Hydroponics Pool Spa Drinking water Laboratory
By TEKCOPLUS
In Stock
$29.90

mpn: PHTK-241, ean: 0713072685395,

4.7 out of 5 stars with 59 reviews
 3-in-1 Water quality testing tool PH/EC/TEMP measurement in one unit. Wide applications: such as beverage, fish hatcheries, food processing, aquarium, photography, laboratory, quality control, school & colleges, swimming pools, water conditions. Features:1.Measure 3 parameters (pH/EC/Temp) in one meter 2.Comes with protective cap and a hard case3.Switchable °C/°F temperature measurement4.Automatic temperature compensation5.Pen type easy to carry6.Easy calibration of pH and EC with just a mi


Festnight Professional 3 in 1 pH/ORP/Temp Meter Water Detector Multi-Parameter Digital LCD Tri-Meter Multi-Function Water Quality Monitor Multi-Parameter Water Quality Tester
By Festnight
In Stock
$35.99
4.7 out of 5 stars with 54 reviews
Want to know whether the pH / Temperature / ORP of water you drink is up to the standard? If so, this pen-type 3-in-1 pH/ORP/TEMP meter is what you need. Featuring the automatic temperature compensation which will automatically compensate the solution temperature of 0~50℃, it can provide you the accurate and stable reading. Suitable for aquarium pool, soil-free growing, laboratory, and environment water. Specifications: Color: Blue Material: ABS Plastic Type: pH/ORP&TEMP-689 Range: pH: 0.00


LaMotte 6915A Visual Grade Phenol Red pH Test Tabs, 1000 ct.
By LaMotte
In Stock
$51.66
$38.36
You Save: 26%

mpn: 6915A-M, ean: 0637395446634,

4.0 out of 5 stars with 28 reviews
Pack of 1000 LaMotte 6915A Visual Grade pH Test abs. For use with LaMotte tablet test kits.Lamotte pH Phenol Red visual grade TesTabs tablets are formulated to dissolve rapidly and produce consistently accurate results. Humidity controlled production and foil packaging provide these reagents with a shelf life of over three years..



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