pH & EC Meter Calibration Solution

General Hydroponics pH 7.0 Calibration Solution 8 Ounce (236 ml)
General Hydroponics pH 7.0 Calibration Solution 8 Ounce (236 ml)
Brand: General Hydroponics
General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our …

Item #: 211551
In Stock
List Price: $7.96
Price: $5.19
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General Hydroponics pH 7.0 Calibration Solution 1 Quart (946 ml)
General Hydroponics pH 7.0 Calibration Solution 1 Quart (946 ml)
Brand: General Hydroponics
General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our …

Item #: 211552
In Stock
List Price: $22.69
Price: $14.77
You Save: $7.92

 


General Hydroponics EC and PPM Calibration Solution 8 Ounce (236 ml)
General Hydroponics EC and PPM Calibration Solution 8 Ounce (236 ml)
Brand: General Hydroponics
Calibration solution for EC and TDS meters. 2930 microsiemens EC , 1500 PPM (NaCL scale) and 2190 PPM (442 scale) . General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among …

Item #: 211571
In Stock
List Price: $8.66
Price: $5.60
You Save: $3.06

 


General Hydroponics pH 4.01 Calibration Solution 8 Ounce (236 ml)
General Hydroponics pH 4.01 Calibration Solution 8 Ounce (236 ml)
Brand: General Hydroponics
General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our …

Item #: 211554
In Stock
List Price: $7.96
Price: $5.19
You Save: $2.77

 


General Hydroponics pH 4.01 Calibration Solution 1 Quart (946 ml)
General Hydroponics pH 4.01 Calibration Solution 1 Quart (946 ml)
Brand: General Hydroponics
General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our …

Item #: 211555
In Stock
List Price: $22.69
Price: $14.77
You Save: $7.92

 


Bluelab Calibration Solution 27.7CF/EC2.77 250ml Standard
Bluelab Calibration Solution 27.7CF/EC2.77 250ml Standard
Brand: Bluelab
Calibration solution for Truncheon, Guardian (conductivity), and ppm/EC pen. 2.77 EC = 1350 TDS/ppm (500 scale) = 1890 ppm (700 ppm) Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated at Bluelab. The CF27.7 (EC2.77) …

Item #: 137820
In Stock
List Price: $8.17
Price: $6.35
You Save: $1.82

 


Bluelab 27.7cf Calibration Solution 500ml
Bluelab 27.7cf Calibration Solution 500ml
Brand: Bluelab
Calibration solution for Truncheon, Guardian (conductivity), and ppm/EC pen. 2.77 EC = 1350 TDS/ppm (500 scale) = 1890 ppm (700 ppm) Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated at Bluelab. The CF27.7 (EC2.77) …

Item #: 137821
In Stock
List Price: $11.10
Price: $8.66
You Save: $2.44

 


7.0 pH Bluelab Calibration Solution 20ml sachet
7.0 pH Bluelab Calibration Solution 20ml sachet
Brand: BlueLab
Calibration and conductivity standard solutions... a must in every grower's toolbox. pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH7.0 first …

Item #: 140186
In Stock
Pack of 25
Price: $32.00
$1.28 (ea)

 


4.0 pH Bluelab Calibration Solution 20ml sachet
4.0 pH Bluelab Calibration Solution 20ml sachet
Brand: BlueLab
Calibration and conductivity standard solutions... a must in every grower's toolbox. pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH7.0 first …

Item #: 140187
In Stock
Pack of 25
Price: $32.00
$1.28 (ea)

 


Bluelab 4.0 250 ML Calibration Solution
Bluelab 4.0 250 ML Calibration Solution
Brand: BlueLab
The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. They are required for the calibration of pH …

Item #: 131884
In Stock
List Price: $8.17
Price: $6.35
You Save: $1.82

 


Bluelab 4.0 500 ML Calibration Solution
Bluelab 4.0 500 ML Calibration Solution
Brand: BlueLab
The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. They are required for the calibration of pH …

Item #: 131885
In Stock
List Price: $11.10
Price: $8.63
You Save: $2.47

 


Bluelab 7.0 250 ML Calibration Solution
Bluelab 7.0 250 ML Calibration Solution
Brand: BlueLab
The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. They are required for the calibration of pH …

Item #: 131886
In Stock
List Price: $8.17
Price: $6.35
You Save: $1.82

 


Bluelab 7.0 500 ML Calibration Solution
Bluelab 7.0 500 ML Calibration Solution
Brand: BlueLab
The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. They are required for the calibration of pH …

Item #: 131887
In Stock
List Price: $11.10
Price: $8.63
You Save: $2.47

 


HM Digital HMC1000 1000ppm Calibration Solution - 3 Ounce
HM Digital HMC1000 1000ppm Calibration Solution - 3 Ounce
Brand: HM Digital
For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges. NaCl calibration solution. Comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner.

Item #: 131939
In Stock
List Price: $6.69
Price: $4.41
You Save: $2.28

 


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