Brands :: GroStar

GroStar GS2 Soil pH Pen

Product Code:

AI31020

AI31020 - GroStar GS2 Soil pH Pen Lab grade instruments designed specifically for growers! Includes: • 2-year warranty (instrument) • 1-year warranty (probe) • pH 7 & pH 4 solution (50ml bottles of each) • KCL soaking solution (10ml bottle) • Cleaning brush • Hole dibber • Lanyard...

$214.32 $256.99 -17%

In Stock: 114

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GroStar GS2-E replacement Soil Spear pH electrode

Product Code:

AI58020

AI58020 - GroStar GS2-E replacement Soil Spear pH electrode • Spear pH Probe measures pH and temperature in nutrient solution, soil, coco coir, rockwool, and many other media types • Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance...

$151.77 $181.99 -17%

In Stock: 89

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GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen

Product Code:

AI21040

AI21040 - GroStar GS4 pH/EC/500ppm/700ppm & Temp (5-in-1) Combo Pen Lab grade instruments designed specifically for growers! Includes: • 2-year warranty (instrument) • 1-year warranty (probe) • pH 7 & pH4 calibration solution (50ml bottle each) • 2.77 EC calibration solution...

$149.27 $178.99 -17%

In Stock: 64

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GroStar GS1 pH Pen

Product Code:

AI11010

AI11010 - GroStar GS1 pH Pen Lab grade instruments designed specifically for growers! Includes: • 2-year warranty (instrument) • 1-year warranty (probe) • pH 7 & pH4 calibration solution (50ml bottle each) • KCL storage solution (10ml bottle) • Lanyard and user manual Features: •...

$99.72 $115.99 -14%

In Stock: 259

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GroStar GS3 EC Pen

Product Code:

AI11030

AI11030 - GroStar GS3 EC/PPM/Temp Pen Lab grade instruments designed specifically for growers! Includes: • 2-year warranty (instrument) • 1-year warranty (probe) • 2.77 EC calibration solution, 50 ml bottle Features: • Measures conductivity EC, PPM (500), PPM (700) and temperature •...

$95.06 $113.99 -17%

In Stock: 94

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GroStar GS4-E replacement pH/EC combo electrode

Product Code:

AI58040

AI58040 - GroStar GS4-E replacement pH/EC combo electrode • Measures pH, conductivity (EC and PPM) and temperature • Combo probe built with lithium glass membrane and titanium alloy to ensure high accuracy and durability • Premium probe technologies and materials ensure high...

$66.71 $79.99 -17%

In Stock: 82

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GroStar GS3-E replacement EC electrode

Product Code:

AI58030

AI58030 - GroStar GS3-E replacement EC electrode • Measures conductivity EC, PPM (500), PPM (700) and temperature • Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance • Titanium alloy sensor designed for high accuracy EC...

$45.02 $53.99 -17%

In Stock: 100

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GroStar GS1-E replacement pH electrode

Product Code:

AI58010

AI58010 - GroStar GS1-E replacement pH electrode • Replacement GS1 probe measures pH and temperature • Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance • Low-resistance lithium glass membrane • double junction structure...

$42.52 $50.99 -17%

In Stock: 78

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GroStar pH calibration kit (pH 4/7/10, 8 oz. each)

Product Code:

AI61115

GroStar by Apera pH calibration kit (pH 4/7/10, 8 oz. each) Kit Includes: (1) pH 4.0 calibration solution 8 oz. (1) pH 7.0 calibration solution 8 oz. (1) pH 10.0 calibration solution 8 oz. pH measuring equipment must be cleaned and calibrated regularly to ensure accurate readings...

$24.17 $28.99 -17%

In Stock: 29

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GroStar pH Probe Maintanence Kit

Product Code:

AI61170

All-in-one maintanence kit provides everything you need to maintain, clean and store your GroStar pH probe Kit Includes : 3M KCL storage solution (4oz.) Cleaning solution (8oz.) CalPod solution organizer Probe cleaning brush Wash bottle

$20.00 $23.99 -17%

In Stock: 76

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GroStar pH calibration kit (pH 4/7, 8 oz. each)

Product Code:

AI61113

GroStar by Apera pH calibration kit (pH 4/7, 8 oz. each) Kit includes: (1) 8 oz. pH 4.0 calibration solution (1) 8 oz. pH 7.0 calibration solution pH measuring equipment must be cleaned and calibrated regularly to ensure accurate readings. High accuracy (0. 01 pH):...

$15.83 $18.99 -17%

In Stock: 126

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GroStar EC Calibration Kit (2.77 EC, 8 oz. each)

Product Code:

AI71117

GroStar by Apera EC Calibration Kit (2.77 EC, 8 oz. each) • 2.77 EC conductivity standard calibration solution • Used as a reference or checking solution to ensure you have adequately cleaned the EC/ppm probe • Calibration Solution should be stored in a cool place out of direct...

$12.50 $14.99 -17%

In Stock: 102

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