Halo Grow Box

pH Testing & Control - Blowout Sale! Save up to 65%


Blowout Sale! Up to 65% off on pH Testing & Control at Halo Grow Box. Top brands include Bluelab, Nicholson, General Hydroponics, VIVOSUN, Plantz Shoppe, Advanced Nutrients, STANDARD XCHANGE, BeneStellar, TekcoPlus, KETOTEK, Par Pro, Hanna Instruments, Atami, HDE, Mepco, & elincamp. Hurry! Limited time offers. Offers valid only while supplies last.



Bluelab Guardian Monitor Connect In-Line
Bluelab Guardian Monitor Connect In-Line
By Bluelab
In Stock
$487.01
$487.00

mpn: MONGUACONIN, ean: 9421024920807,

4.7 out of 5 stars with 139 reviews
The Bluelab Guardian Monitor Connect Inline 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 t...


Steam Trap, 600 psi, 1250,Max. Temp. 800°F
Steam Trap, 600 psi, 1250,Max. Temp. 800°F
By Nicholson
In Stock
$508.18

mpn: NA, ean: 7437844747700,

4.8 out of 5 stars with 103 reviews
Controls steam and condensate movement to maximize removal of latent heat from steam for efficient system operation. Stainless steel internal components. Compact trap can handle water hammer and superheat; installs easily in any position. The audible...




VIVOSUN pH & TDS Meter Combo, 0.05ph High Accuracy Pen Type pH Meter & +/- 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter
VIVOSUN pH & TDS Meter Combo, 0.05ph High Accuracy Pen Type pH Meter & +/- 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter
By VIVOSUN
In Stock
$39.99
$16.98
You Save: 58%

mpn: 4336465266, ean: 0615435160962,

4.1 out of 5 stars with 108 reviews
Your 1# Choice to Know Water QualityThe VIVOSUN TDS EC PH Meter Set is a professional water quality test meter.PH Meter Specifications: Measure Range : 0.00 - 14.00 pHResolution : 0.01 pHAccuracy : 0.05 pHCalibration: Two Points Automatic Calibrati...


Bluelab PowerPod
Bluelab PowerPod
By Bluelab
In Stock
$529.99

ean: 9421024920906,

4.6 out of 5 stars with 132 reviews
The Bluelab® PowerPod™ is an electronically controlled mains switching box that is designed to activate mains powered equipment via control signals from a Bluelab® controller. The Bluelab® PowerPod™ is ideal for use when using a Bluelab® Pro ...


Digital PH Meter - Pocket Size pH Tester for Drinking Water, Aquariums, Swimming Pools, Hydroponics, Water Quality, 0-14 PH Measuring Range with Backlit Display & PH Buffering Powder
Digital PH Meter - Pocket Size pH Tester for Drinking Water, Aquariums, Swimming Pools, Hydroponics, Water Quality, 0-14 PH Measuring Range with Backlit Display & PH Buffering Powder
By Plantz Shoppe
In Stock
$29.99

ean: 0738246429001,

4.4 out of 5 stars with 44 reviews
Wouldn't it be great to have a pH tester that gave you accurate results without all the hassle? The Plantz Shoppe Digital pH Meter was designed with an auto calibration button and included buffer powders that enable you to test the pH readings for m...


Advanced Nutrients pH-Up 500mL
Advanced Nutrients pH-Up 500mL
By Advanced Nutrients
In Stock
$16.56

mpn: 3850-13, ean: 0845268012057,

4.1 out of 5 stars with 46 reviews
Acidity versus alkalinity are key factors in your crop's water and root zone, as measured by pH. If you have too high or too low pH, your crops cannot uptake nutrients, and may well be damaged or even killed. That's why smart growers daily monitor ...


Heat Exchanger,Shell And Tube,525K BTU
Heat Exchanger,Shell And Tube,525K BTU
By STANDARD XCHANGE
In Stock
$6,542.79

mpn: NA, ean: 7437844555572,

4.5 out of 5 stars with 99 reviews
Standard Xchange shell and tube heat exchanger features a simple design that allows one fluid to run through the inner tubes while another fluid flows through the shell to transfer heat efficiently. Easy-to-service unit is constructed of stainless st...


Digital pH Meter with 3 Set of pH Buffer Powder, BeneStellar pH Tester with ATC Measure Household Drinking Water, pH Testing, Aquarium, Water, Swimming Pool, Hydroponics (Yellow)
Digital pH Meter with 3 Set of pH Buffer Powder, BeneStellar pH Tester with ATC Measure Household Drinking Water, pH Testing, Aquarium, Water, Swimming Pool, Hydroponics (Yellow)
By BeneStellar
In Stock
$84.98

mpn: 4336465292, ean: 0702668563209,

4.0 out of 5 stars with 137 reviews
Get accurate pH measurement easily  This pH meter the perfect device for your testing of the acidity or alkalinity of liquids. It is very easy to use - just immerse the electrode to get accurate, fast readings. Product Features Measuring range:0.00-...


Waterproof 0~14 Digital pH Meter with Temperature Measurement High Accuracy pH Pen Tests Water, Aquarium, Pool, Hydroponics
Waterproof 0~14 Digital pH Meter with Temperature Measurement High Accuracy pH Pen Tests Water, Aquarium, Pool, Hydroponics
By TekcoPlus
In Stock
$32.50
$30.50
You Save: 6%

mpn: PHTK-2, ean: 0713072681625,

4.1 out of 5 stars with 83 reviews
This pentype digital pH Meter measure pH level range from 0~14pH and has the following advance features: automatic calibration (pH4, pH7 & pH10), waterproof - designed to protect against windblown dust, powder dust, water splashes, rain and wash down...


KETOTEK Digital PH Meter, PH Meter with ATC, Water PH Test Meter with 0.00-16.00PH Measure Range for Drinking Water, Hydroponics, Aquariums, Swimming Pools. High Accuracy 0.01 PH Pen Tester [Updated]
KETOTEK Digital PH Meter, PH Meter with ATC, Water PH Test Meter with 0.00-16.00PH Measure Range for Drinking Water, Hydroponics, Aquariums, Swimming Pools. High Accuracy 0.01 PH Pen Tester [Updated]
By KETOTEK
In Stock
$12.99

mpn: KT-3 Portable, ean: 0723260104560,

4.7 out of 5 stars with 124 reviews
Specification:Measure range: 0.00- 14.00PHResolution: 0.01PHAccuracy: 0.01 PHPower Supply: 2*1.5V (LR44 Button cell) (Included)Operating Temperature: 0°C - 60°CDimension: 155mm* 31mm * 18mmWeight: 50gCalibration tips:a. Dissolve PH buffer powder in...


Bluelab Soil pH Replacement Probe
Bluelab Soil pH Replacement Probe
By Bluelab
In Stock
$110.00

ean: 9421024920104,

4.5 out of 5 stars with 121 reviews
If you need to measure the pH level of soil, media or substrates, then the Bluelab® Soil pH Meter is just what you need. This hand-held meter comes with a Soil pH Probe, Dibber/Auger, pH 4.0 and pH 7.0 calibration solutions, plus a helpful Quick St...


Par Pro Hyper Arc HPS Lamp 1100W (12)
Par Pro Hyper Arc HPS Lamp 1100W (12)
By Par Pro
In Stock
$720.99

ean: 0763598244200,

4.0 out of 5 stars with 84 reviews
The Worlds Most Powerful Single-Ended Grow Lamp! Consistently Tested Over 2,380 umol! (Verified By UL) Par Pro 1,100 Watt HYPER ARC High-Pressure Sodium lamp delivers a staggering 2,380 umol on the Galaxy 1000 Watt Turbo setting! The HYPER ARC lamp h...


Hanna Instruments 716840 PHEP Tester (HI 98107)
Hanna Instruments 716840 PHEP Tester (HI 98107)
By Hanna Instruments
In Stock
$55.69

mpn: 716840, ean: 0799441254751,

4.7 out of 5 stars with 111 reviews
The hi 98107 (phep), which is the result of over two decades of research & manufacturing experience, is the updated version of our widely popular 96107 (phep). today the redesigned phep series feature a rugged & ergonomically enhanced Casing that fit...


bio bloombastic atami 5L
bio bloombastic atami 5L
By Atami
In Stock
$526.49

ean: 0702685764030,

4.8 out of 5 stars with 129 reviews
Bio bloombastic 5L top quality item...


General Hydroponics GH1514 General Hydroponics Ph gSQUJb Control Kit (Pack of 2)
General Hydroponics GH1514 General Hydroponics Ph gSQUJb Control Kit (Pack of 2)
By General Hydroponics
In Stock
$37.77

ean: 0793094246859,

4.4 out of 5 stars with 85 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 hav...


HDE Hydroponic Fruit Vegetable Grow Kit- 3-in-1 Soil Light Sensor + TDS ppm Test Pen + pH Meter Digital Monitor
HDE Hydroponic Fruit Vegetable Grow Kit- 3-in-1 Soil Light Sensor + TDS ppm Test Pen + pH Meter Digital Monitor
By HDE
In Stock
$21.99
$18.99
You Save: 14%

mpn: HDE-*C19+N12+N109 NEW15, ean: 0700355854418,

4.0 out of 5 stars with 60 reviews
Are you sick of your plants dying, fed up of being surrounded by wilting and brown-leaved flowers? If so, the problem could be with your soil and water quality. You need the HDE 3-in-1 Water Soil Light Meter Tool & our HDE Digital TDS (Total Disso...


Bluelab pH 4.0 Calibration Solution 500 ml, pH 7.0 Calibration Solution 500 ml
Bluelab pH 4.0 Calibration Solution 500 ml, pH 7.0 Calibration Solution 500 ml
By Bluelab
In Stock
$22.77

mpn: BL-COMBO-1,

4.1 out of 5 stars with 144 reviews
Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of...


Steam Trap, 125 psi, 1650,Max. Temp. 450°F
Steam Trap, 125 psi, 1650,Max. Temp. 450°F
By Mepco
In Stock
$565.39

mpn: NA, ean: 7437844438455,

4.7 out of 5 stars with 44 reviews
Ideal for use with most types of steam heating systems and steam process equipment, this MEPCO steam trap allows 4 possible connections for greater flexibility in your piping system. Reliable trap has all working parts constructed of non-corrosive me...


elincamp Water Quality Tester,Digital PH Meter for water quality,food,swimming pool,Aquariums, Hydroponics,PH Measurement for 0-14 PH,±0.1 Accurary,0.1 Resolution,LED Display Pocket Size (Yellow)
elincamp Water Quality Tester,Digital PH Meter for water quality,food,swimming pool,Aquariums, Hydroponics,PH Measurement for 0-14 PH,±0.1 Accurary,0.1 Resolution,LED Display Pocket Size (Yellow)
By elincamp
In Stock
$35.99
$12.59
You Save: 65%

mpn: 43217-75297, ean: 0716253025393,

4.6 out of 5 stars with 136 reviews
Specification: Range: 0.0-14.0 PH (Below or exceeding this range will cause the glass electrode to burst) Resolution: 0.1 PH Accuracy: ±0.1 pH Temperature compensation:0-50℃(Below or exceeding this range will cause the glass electrode to burst) Ba...



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