Meters & Solutions

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 sun and heat.• Non-hazardous product• Please keep out of reach of children • Made in USA

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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  

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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 High accuracy (0. 01 pH): standardized against NIST Certified pH references within 0. 01 pH at 25˚C (77˚F). ideal for the calibration of all pH meters Color-coded, double-sealed, 1-year shelf life Expiration date and temperature/ph reference chart provided for reference Non-hazardous product Calibration Solution should be stored in a cool place out of direct sun and heat  

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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 accuracy and durability with minimal maintenance• double junction structure uses blue gel electrolyte without the air bubble • 1-year warranty

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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 measurement• 1-year warranty

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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• Impact-resistant spear glass tip, 10 times stronger than conventional glass bulb• PTFE ring prevents a clogged junction caused by soil particles, significantly increases durability• Backed by Apera's Swiss LabSen® proprietary sensor technology• 1-year warranty

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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 uses blue gel electrolyte without the air bubble • 1-year warranty

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AI31020 - GroStar GS2 Soil pH PenLab 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 and user manualFeatures:• 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• Impact-resistant spear glass tip, 10 times stronger than conventional glass bulb• PTFE ring prevents a clogged junction caused by soil particles, significantly increases durability• Backed by GroStar proprietary sensor technology from Switzerland• Easy-to-use design and fast calibration adjustment• Replaceable Swiss LabSen Spear Soil pH Probe• Large 3-color backlit screen gives you clear information• Durable structure, IP67 waterproof rating• Powered by AAA batteries with auto off function• Automatic temperature compensation

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AI21040 - GroStar GS4 pH/EC/500ppm/700ppm & Temp (5-in-1) Combo PenLab 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 (50ml bottle)• KCL storage solution (10ml bottle)• Lanyard and user manualFeatures:• Measures pH, conductivity (EC and 500ppm/700ppm) and temperature (5-in-1)• Compatible with all GroStar replacement probes: pH, Soil pH, EC and PH/EC Combo• Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance• Easy-to-use design and fast calibration adjustment• Double junction replaceable probe, so you don’t have to discard the entire pen when the probe reaches its end of life• Large 3-color backlit screen gives you clear information• Durable structure, IP67 waterproof rating• Powered by AAA batteries with auto off function• Automatic temperature compensation 

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AI11030 - GroStar GS3 EC/PPM/Temp PenLab grade instruments designed specifically for growers!Includes: • 2-year warranty (instrument)• 1-year warranty (probe)• 2.77 EC calibration solution, 50 ml bottleFeatures:• 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 measurement• Easy-to-use design and fast calibration adjustment.• Large 3-color backlit screen gives you clear information• IP67 waterproof rating • Replaceable probe• Powered by AAA batteries with auto off function• Automatic temperature compensation

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AI11010 - GroStar GS1 pH PenLab 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:• Measures pH and temperature• Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance• Easy-to-use design and fast calibration adjustment• Double junction replaceable probe, so you don’t have to discard the entire pen when the probe reaches its end of life• Large 3-color backlit screen gives you clear information• IP67 waterproof rating• Powered by AAA batteries with auto off function• Automatic temperature compensation

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