pH Testing & Control - Page 4 - Blowout Sale! Save up to 53%


Blowout Sale! Up to 53% off on pH Testing & Control at Halo Grow Box, Page 4. Top brands include General Hydroponics, Fox Farm, Newdy, Bluelab, unbrand, , HM Digital, Anura, Unido Box, Z3Z, Taco, Luster Leaf, & TekcoPlus. Hurry! Limited time offers. Offers valid only while supplies last.



General Hydroponics GH1514 General Hydroponics Ph Control Kit (Pack of 2)
General Hydroponics GH1514 General Hydroponics Ph Control Kit (Pack of 2)
By General Hydroponics
In Stock
$43.76

ean: 0793094246941,

4.0 out of 5 stars with 116 reviews
pH controls is essential for stimulating vigorous plant growth. The pH scale measures acidity or alkalinity on a scale of 0-14. Below 7.0 the pH is acidic. Above 7.0 , the pH is alkaline. 7.0 is nuetral. The best pH for general plant growth is in the range of 5.5 to 6.5, slightly acidic.Nutrient solution that is too high (basic) or too low (acidic) cannot be properly asbsorbed by plants. Incorrect nutrient solution pH can cause slow growth,sickly plants and low yields.Designed to work superbly


FoxFarm Gringo Rhasta pH Down Gallon
FoxFarm Gringo Rhasta pH Down Gallon
By Fox Farm
In Stock
$78.98

mpn: 733294, ean: 8347951838606,

4.4 out of 5 stars with 45 reviews
It's time to get down! Gringo Rasta® pH Down uses citric acid to lower the pH of your nutrient solution in both soil and hydroponic environments.FoxFarm® Gringo RastaTM pH Down. Brand Name: Fox Farm. PH/EC/TDS Meters and Solutions Parts and Systems for Hydroponics. Package Contains: 1 Units. USA & Canada Warehouses, Fast Shippings.


Newdy Digital PH Meter Tester for Water Quality, Food, Aquarium, Pool & Hydroponics,0.01/High Accuracy +/- 0.2 and 0.00-14.00 Measurement Range, Battery Included -Blue
Newdy Digital PH Meter Tester for Water Quality, Food, Aquarium, Pool & Hydroponics,0.01/High Accuracy +/- 0.2 and 0.00-14.00 Measurement Range, Battery Included -Blue
By Newdy
In Stock
$29.99
$13.99
You Save: 53%

ean: 0604213022356,

4.6 out of 5 stars with 123 reviews
▼Water is consumed by the plants and animals we depend on, and we directly consume it every day. The pH level of water can provide information on potential contamination. ▼This pH meter is 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. Great for kids school science experiments. Test different bottled waters or even your homemade sauerkraut ➤ Specifications ● Measure


Bluelab Connect Stick
Bluelab Connect Stick
By Bluelab
In Stock
$156.99

mpn: 716486, ean: 8927615884400,

4.9 out of 5 stars with 15 reviews
The Bluelab® Guardian Monitor Connect, Bluelab® Connect Stick, Bluelab® Connect Range Extender and Bluelab® Connect Software. The Bluelab® Guardian Monitor Connect can connect wirelessly to a computer at the grow site via the Bluelab® Connect Stick, which enables the data logging of pH, Conductivity and Temperature to the FREE Bluelab® Connect Software, downloadable online. The logged information is viewed on a computer and can also be accessed remotely via the cloud from a mobile device


Digital Ph Meter + TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM
Digital Ph Meter + TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM
By unbrand
In Stock
$12.89
$10.48
You Save: 19%

ean: 0791511110851,

4.8 out of 5 stars with 62 reviews
*Measuring pH Range: 0.0 - 14.0 pH *Resolution: 0.1 pH *Accuracy: ±0.1 pH (at 20°C/68°F), ±0.2 pH *Operating Temperature: 0 - 50°C (32 - 122°F) *Calibration: Manual, 1 point *Relative Humidity:Brand New and High Quality. Excellent meter, very accurate and durable. With protective plastic case and calibration screwdriver. An ideal instrument for aquarium, fishing industry, swimming pool, school laboratory, food & beverage etc. In addition, you must calibrate this tester whenever the


Bluelab pH Probe KCI Storage Solution 250ml
Bluelab pH Probe KCI Storage Solution 250ml
By
In Stock
$27.98
4.8 out of 5 stars with 54 reviews
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Bluelab Leap pH Probe (Probe Only)
Bluelab Leap pH Probe (Probe Only)
By Bluelab
In Stock
$126.99

mpn: 716446, ean: 8927615884301,

4.8 out of 5 stars with 9 reviews
The perfect, portable way to accurately measure and monitor pH levels in a wide range of media. We have combined the Bluelab® Multimedia pH Meter and Bluelab® LeapTM pH Probe to take fast accurate measurements in nutrient solution, soil, coco coir, rockwool, potting mix and many other media types. Calibration is simple with one push button on the meter and fresh Bluelab® Calibration Solutions. Successful calibration indicator is displayed on screen for 30 days to indicate when re-calibration


General Hydroponics GH1514 General Hydroponics Ph FxfgWS Control Kit (Pack of 2)
General Hydroponics GH1514 General Hydroponics Ph FxfgWS Control Kit (Pack of 2)
By General Hydroponics
In Stock
$37.75

ean: 0793094246729,

4.2 out of 5 stars with 23 reviews
The pH Control Kit by General Hydroponics provides everything you need for testing the pH level of the nutrient solution in your hydroponic system. pH control is essential for stimulating vigorous plant growth. Vital elements in nutrient solution having pH that is too high (basic) or too low (acidic) cannot be properly absorbed by plants. Incorrect nutrient solution pH can cause slow growth, sickly plants and low yields. The kit contains pH UP (potassium hydroxide), pH DOWN (phosphoric acid),


General Hydroponics pH Control Kit Adjust for 8oz pH Up and Down GH Includes 5 Pipettes and Bonus Hydro Empire 4oz Measuring Cup Bundle. The Best GH pH Test kit for hydroponic Gardens on The Market!
General Hydroponics pH Control Kit Adjust for 8oz pH Up and Down GH Includes 5 Pipettes and Bonus Hydro Empire 4oz Measuring Cup Bundle. The Best GH pH Test kit for hydroponic Gardens on The Market!
By General Hydroponics
In Stock
$27.99
$22.95
You Save: 18%
4.2 out of 5 stars with 16 reviews
General Hydroponics ph up and down kit contains 8 oz pH UP, 8 oz pH DOWN, 1 oz indicator and vial and 5 pipettes for safe and easy pH level detection.This base solution is formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level. This powder based formula is made to raise the pH in a reservoir. Lightweight in comparison to liquids.Acid formulated using food grade Phosphoric acid. Just add a


HM Digital HydroMaster HM-500
HM Digital HydroMaster HM-500
By HM Digital
In Stock
$267.77

ean: 0891144000311,

4.2 out of 5 stars with 92 reviews
HydroMaster Digital tester makes monitoring water easier than ever by reading the levels that matter most and providing accurate readings that you can depend on. Continuous pH/EC/TDS/Temp monitor with rechargeable battery. Portable, wall mount or benchtop use. Tests pH at a range of 0 pH-14 pH, temperatures from 30°F-176°F, TDS from 0-9999 ppm and EC from 0-9999 µS. Stores up to 20 measurement readings, so you can monitor changes over time. LCD touch-type screen with auto backlighting.


Newdy Digital PH Meter Tester for Water Quality, Food, Aquarium, Pool & Hydroponics,0.01/High Accuracy +/- 0.2 and 0.00-14.00 Measurement Range, Battery Included -Blue
Newdy Digital PH Meter Tester for Water Quality, Food, Aquarium, Pool & Hydroponics,0.01/High Accuracy +/- 0.2 and 0.00-14.00 Measurement Range, Battery Included -Blue
By Newdy
In Stock
$12.99

ean: 8011515680115,

4.2 out of 5 stars with 114 reviews
▼Water is consumed by the plants and animals we depend on, and we directly consume it every day. The pH level of water can provide information on potential contamination. ▼This pH meter is 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. Great for kids school science experiments. Test different bottled waters or even your homemade sauerkraut ➤ Specifications ● Measure


Anura Lab Quality Combo Pocket Size Digital pH, Salinity, TDS, EC & Temperature Meter Tester For Hydroponic Use | Drinking Water | Pool & Spas | Freshwater Aquariums | .01 pH Resolution
Anura Lab Quality Combo Pocket Size Digital pH, Salinity, TDS, EC & Temperature Meter Tester For Hydroponic Use | Drinking Water | Pool & Spas | Freshwater Aquariums | .01 pH Resolution
By Anura
In Stock
$200.00
$180.00
You Save: 10%

mpn: EP70, ean: 0784672854573,

4.5 out of 5 stars with 112 reviews
Anura products are built to last and the EP70 is easy to use. Measures: pH, Conductivity, TDS, Salinity, and Temperature Water resistant case, IP67 rating. Able to replace the pH/Conductivity modules, this means you can save money with a replacement electrode probe instead of buying a brand new tester. Batteries included and over 100 hrs of battery life. Automatically turns off in 10 mins of non-activity, saving the battery. 50 memory data sets for recalling previous readings. Switches between


Bluelab pH Controller Connect 2017 Model BRAND NEW
Bluelab pH Controller Connect 2017 Model BRAND NEW
By Bluelab
In Stock
$449.99

ean: 6853848721316,

4.4 out of 5 stars with 122 reviews
Clever monitoring, dosing and data logging of solution pH levels. Made easy. Sometimes the more you know, the better. And when it comes to managing the pH of your nutrient solution, exact knowledge makes a world of difference. Bluelab's brainy pH controller connect constantly monitors and fine-tunes the pH levels for you. But more than that, it wirelessly data logs to your computer too, putting continuous information at your fingertips. Use the data to make system changes faster for the


PÜRATest pH Meter and TDS Meter (Beige) Combo Pack with pH Buffer Powder Solution - Water Testing Meter Accurate Reading, Auto Calibrate, Temperature, Lock LCD Screen - Drinking water, pools, aquarium
PÜRATest pH Meter and TDS Meter (Beige) Combo Pack with pH Buffer Powder Solution - Water Testing Meter Accurate Reading, Auto Calibrate, Temperature, Lock LCD Screen - Drinking water, pools, aquarium
By Unido Box
In Stock
$13.95

mpn: 4336465288, ean: 0689214227344,

4.2 out of 5 stars with 102 reviews
pH Meter Tester: - No calibration needed for new purchased item, just immerse the electrode and wait for about 30~60 seconds to get the accuracy readings. - Use the 6.86 pH buffer powder for calibration after a long time /frequently using or when ultra accuracy is needed. Specifications: - Measuring range: 0.0 ~ 14.0 PH - Resolution: ± 0.01 PH - Accuracy: ± 0.05 pH (20°C/ 68°F) - Batteries: 2 x 1.5V batteries (included) - Automatic temperature compensation: 0~50°C /122°F Dimensions: 5.85


New 3in1 Plant Flowers Hydroponic Soil Moisture PH Light Meter Tester
New 3in1 Plant Flowers Hydroponic Soil Moisture PH Light Meter Tester
By Z3Z
In Stock
$18.98

ean: 8897785895844,

4.9 out of 5 stars with 133 reviews
Description: 100% brand new and high quality 3 in 1 multifunctional moisture, PH and light meter No battery required, simple and convenient to use Simply insert probe of the meter into the soil, switch to the setting you want to measure and read the scale Probe length:21cm Ideal tool for both indoor and garden plants care Please clean the electrode after each use Package includes: 3in1 Moisture PH Light meter*13 in 1 multifunctional moisture, PH and light meter. No battery required, simple and


Bluelab Combo Meter
Bluelab Combo Meter
By Bluelab
In Stock
$305.99

mpn: 716441, ean: 8927615884271,

4.1 out of 5 stars with 11 reviews
The Bluelab® Combo Meter is a conductivity, pH and temperature meter all in one. As the Bluelab® Combo Meter is portable and does not require a power supply to operate, it can be used anytime and anywhere to help you manage your crops daily nutrient requirements. Simple push button pH calibration. Successful pH calibration indicators. Low battery indicator. Over range and under range indicators. Display options available in degrees °C & °F, EC, CF, ppm 500 and ppm 700. Supplied with 2x AAA


Air Separator, 2,150psi,240,Automatic
Air Separator, 2,150psi,240,Automatic
By Taco
In Stock
$618.18

mpn: NA, ean: 7437844030062,

4.9 out of 5 stars with 58 reviews
Removes unwanted air from closed loop heating and cooling systems to help increase efficiency and eliminate noise.Specification: Item: Air SeparatorType: Automatic(F)NPT Connections (In.): 2Connection: 2'' (F) NPTOverall Height (In.): 9.125Max. Temp. (F): 240 DegreesMax. Pressure (PSI): 150Material: Cast Iron''Item: Air Separator. Type: Automatic. (F)NPT Connections (In.): 2. Connection: 2'' (F) NPT. Overall Height (In.): 9.125.


Bluelab pH Down, 1 Liter Bottle
Bluelab pH Down, 1 Liter Bottle
By Bluelab
In Stock
$12.15

ean: 9421024920661,

4.7 out of 5 stars with 37 reviews
If your pH isn't in the right range-and that's 5.5-6.5 for most plant varieties-your nutrients are likely wasted. Too high or too low, and you're in trouble. The result is nutrient deficiency or complete nutrient lockout. A sure way to unhappy, unhealthy-even dying-plants. Bluelab pH Down Solution is formulated to the highest standards. Just add what's required to reduce pH. Your plants will thank you for it. The main thing is, you'll see the difference in your harvest. Optimum inputs. Optimum


Rapitest pH Meter
Rapitest pH Meter
By Luster Leaf
In Stock
$12.64

mpn: 1840, ean: 0035307018403,

4.7 out of 5 stars with 20 reviews
Rapitest, Soil PH Meter, Checks Which Plants Suit Your Soil, PH Tells You How To Alter Soil PH, A PH Preference Guide For More Than 400 Plants Is Included With The Meter.Luster Leaf. 1840. 6. NEW. 3.


Digital pH Water Quality Meter Tester Monitor with Replaceable BNC Electrode Probe Adjustable Mounting Bracket for Aquarium Tank Waterproof
Digital pH Water Quality Meter Tester Monitor with Replaceable BNC Electrode Probe Adjustable Mounting Bracket for Aquarium Tank Waterproof
By TekcoPlus
In Stock
$38.90
$36.99
You Save: 5%

mpn: PHTK-26, ean: 0713072683902,

4.8 out of 5 stars with 9 reviews
An upgraded version of pH monitor that allows you to replace electrode once electrode is accidentally damaged and lets you mount the pH monitor to your tank or aquarium with the included adjustable mounting bracket. Features: Reliable and stable replaceable BNC Electrode with 1 Meter (3.28 feet) cable Adjustable Mounting Bracket with self-adhesive tape Built with Automatic Temperature Compensation (ATC) Easy to use with high accuracy Large LCD Display with 4 digits Pre-calibrated at



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