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Bluelab - Mega Sale! Save up to 22%


Mega Sale! Up to 22% off on Bluelab products at Graph Barometer. Hurry! Limited time offers. Offers valid only while supplies last.



Bluelab Probe Care Kit - pH and Conductivity
Bluelab Probe Care Kit - pH and Conductivity
In Stock
$17.89
$17.22
You Save: 4%

mpn: BLU7001, ean: 5662252287605,

The Blue lab Probe Care Kit contains everything you need to clean, hydrate and calibrate pH probes as well as clean and test conductivity (ppm) probes. Probe cleaning and correctly storing pH probes ensures you get the most accurate readings possible...


Bluelab pH Probe Meter for Plant Germination
Bluelab pH Probe Meter for Plant Germination
In Stock
$49.05
$44.77
You Save: 9%

mpn: BLU24102, ean: 0798527518558,

The Blue lab pH Probe is a replacement pH probe suitable for use with Blue lab products that test the pH value of a solution. Unfortunately pH Probes do not last forever as they age through normal use and will eventually fail. With good care and use ...


BlueLab PH Down Solutions, 1 gallon
BlueLab PH Down Solutions, 1 gallon
In Stock
$40.95

mpn: 716349, ean: 9421024920715,

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 B...


BlueLab PH 4.0 Calibration Solution, 500 milliliters
BlueLab PH 4.0 Calibration Solution, 500 milliliters
In Stock
$11.00
$9.77
You Save: 11%

mpn: GL56732898, ean: 0791090263030,

PH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool plac...


BlueLab PH up Solutions, 1 L
BlueLab PH up Solutions, 1 L
In Stock
$19.00

mpn: 716345, ean: 9421024920654,

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 B...


BlueLab 2.77EC Conductivity Solution, 250 milliliters
BlueLab 2.77EC Conductivity Solution, 250 milliliters
In Stock
$12.96
$11.15
You Save: 14%

mpn: 732899, ean: 0638888603435,

The EC2.77 solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/ppm probe. Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They shou...


Bluelab PPM Pen - 716482 Hydroponic Aquarium PPM Meter ;from#bigtimehydroponics
Bluelab PPM Pen - 716482 Hydroponic Aquarium PPM Meter ;from#bigtimehydroponics
In Stock
$89.99

ean: 0753956670666,

Measures conductivity and temperature. Selectable units for conductivity and temperature. Backlit LCD display with low battery warning. Successful calibration indicator and calibration is optional. Fully waterproof. Auto off function and hold reading...


Bluelab pH Meter for Plant Germination
Bluelab pH Meter for Plant Germination
SKU: #72329
In Stock
$143.88
$138.77
You Save: 4%

sku: 72329, mpn: BLU2320E, ean: 9421024920050,

4.1 out of 5 stars with 35 reviews
Plants all need a particular pH to maximize the uptake of nutrient solution. Without taking control of the pH, plants can't take up the necessary elements they need for growth. The Blue lab pH Meter is the perfect, portable way to accurately measure ...


Bluelab BLU2100E Commercial Truncheon Meter
Bluelab BLU2100E Commercial Truncheon Meter
In Stock
$132.00
$103.36
You Save: 22%

mpn: BLU2100E, ean: 9421024920135,

4.5 out of 5 stars with 53 reviews
Big jobs require a big Truncheon! With a conductivity range right up to 6.0EC (60CF or 4200ppm), it will never leave you short. The Commercial TruncheonĀ® Nutrient Meter has been designed for hydroponic crops that require a higher than normal EC or C...


Bluelab Soil pH Meter - METSOILPH
Bluelab Soil pH Meter - METSOILPH
In Stock
$163.01
$158.75
You Save: 3%

mpn: METSOILPH, ean: 0791090254878,

4.0 out of 5 stars with 18 reviews
Blue lab soil ph. meter soil ph. meter if you need to measure the ph. level of soil, media or substrates, then the blue lab soil ph. meter is just what you need our meter can be used by everybody from the home enthusiast to commercial growers. Qualit...


Bluelab 716441 Combo Meter Plant Germination
Bluelab 716441 Combo Meter Plant Germination
In Stock
$177.77
$176.25

mpn: 716441, ean: 0791090254922,

5 year Limited Guarantee Bluelab Combo Meter The Bluelab Combo Meter is a portable Meter that takes measurements of pH, conductivity and temperature within a solution. The correct pH, conductivity and temperature levels of a nutrient solution is cri...



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