GroStar
GroStar GS2 Soil pH Pen
GroStar GS2 Soil pH Pen Product Details AI31020 - GroStar GS2 Soil pH Pen Lab grade instruments designed specifically for growers! Includes: pH 7 & pH 4 solution (50ml bottles of each), KCL soaking solution (10ml bottle), cleaning brush, hole dibber, lanyard and user manual 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 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 Powered by AAA batteries with auto off function Automatic temperature compensation 2-year warranty on pen, 1-year warranty on probe
$256.99$205.59
GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen Product Details AI21040 - GroStar GS4 pH/EC/500ppm/700ppm & Temp (5-in-1) Combo Pen Lab grade instruments designed specifically for growers! Includes: pH 7 & pH 4 calibration solution (50ml bottle each), 2.77 EC (50ml bottle) and KCL storage solution (10ml bottle), lanyard and user manual Measures pH, conductivity (EC and 500ppm/700ppm) and temperature (5-in-1) 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 Powered by AAA batteries with auto off function Automatic temperature compensation 2-year warranty on pen, 1-year warranty on probe Compatible with all Apera GroStar probes
$178.99$143.19
GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
GroStar pH calibration kit (pH 4/7/10, 8 oz. each) Product Details 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
$28.99$27.25
GroStar pH calibration kit (pH 4/7, 8 oz. each)
GroStar pH calibration kit (pH 4/7, 8 oz. each) Product Details 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): 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.
$18.99$17.85
GroStar GS2-E replacement Soil Spear pH electrode
GroStar GS2-E replacement Soil Spear pH electrode Product Details 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
$181.99$145.59
GroStar GS3 EC Pen
GroStar GS3 EC Pen Product Details AI11030 - GroStar GS3 EC/PPM/Temp Pen Lab grade instruments designed specifically for growers! Includes: 2.77 EC calibration solution (50 ml bottle) 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 Durable structure, IP67 waterproof Replaceable probe Powered by AAA batteries with auto off function Automatic temperature compensation 2-year warranty on pen, 1-year warranty on probe
$113.99$91.19
GroStar GS1 pH Pen
GroStar GS1 pH Pen Product Details AI11010 - GroStar GS1 pH Pen Lab grade instruments designed specifically for growers! Includes: pH 7 & pH4 calibration solution (50ml bottle each), KCL storage solution (10ml bottle), lanyard and user manual 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 Durable structure, IP67 waterproof Powered by AAA batteries with auto off function Automatic temperature compensation 2-year warranty on pen, 1-year warranty on probe
$115.99$105.19
GroStar EC Calibration Kit (2.77 EC, 8 oz. each)
GroStar EC Calibration Kit (2.77 EC, 8 oz. each) Product Details 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
$14.99$14.09
GroStar pH Probe Maintanence Kit
GroStar pH Probe Maintanence Kit Product Details 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
$23.99$22.55
GroStar GS4-E replacement pH/EC combo electrode
GroStar GS4-E replacement pH/EC combo electrode Product Details 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
$79.99$71.99
GroStar GS3-E replacement EC electrode
GroStar GS3-E replacement EC electrode Product Details 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
$53.99$48.59
GroStar GS1-E replacement pH electrode
GroStar GS1-E replacement pH electrode Product Details 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
$50.99$45.89
