Meters
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Original price $139.00 - Original price $139.00Original price$139.00$139.00 - $139.00Current price $139.00GroStar GS1 pH Pen
A lab-grade tool designed specifically for horticulture, this easy-to-use pen allows you to quickly measure and calibrate pH. Premium probe technol...
View full detailsOriginal price $139.00 - Original price $139.00Original price$139.00$139.00 - $139.00Current price $139.00 -
Original price $139.00 - Original price $139.00Original price$139.00$139.00 - $139.00Current price $139.00GroStar GS3 EC Pen
A lab-grade tool designed specifically for horticulture, this easy-to-use pen allows you to quickly measure and calibrate water EC, PPM (500), PPM ...
View full detailsOriginal price $139.00 - Original price $139.00Original price$139.00$139.00 - $139.00Current price $139.00 -
Original price $65.00 - Original price $65.00Original price$65.00$65.00 - $65.00Current price $65.00GroStar GS3-E Replacement EC Electrode
This replacement probe for the GroStar GS3 EC Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe technologi...
View full detailsOriginal price $65.00 - Original price $65.00Original price$65.00$65.00 - $65.00Current price $65.00 -
Original price $60.00 - Original price $60.00Original price$60.00$60.00 - $60.00Current price $60.00GroStar GS1-E Replacement pH Electrode
This replacement probe for the GroStar GS1 pH Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe technologi...
View full detailsOriginal price $60.00 - Original price $60.00Original price$60.00$60.00 - $60.00Current price $60.00 -
Original price $96.00 - Original price $96.00Original price$96.00$96.00 - $96.00Current price $96.00GroStar GS4-E replacement pH/EC combo electrode
This replacement probe for the GroStar GS4 5-in-1 Combo Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe ...
View full detailsOriginal price $96.00 - Original price $96.00Original price$96.00$96.00 - $96.00Current price $96.00
