Skip to content

GroStar GS1 pH Pen

Original price $0
Original price $139.00 - Original price $139.00
Original price
Current price $139.00
$139.00 - $139.00
Current price $139.00

A lab-grade tool designed specifically for horticulture, this easy-to-use pen allows you to quickly measure and calibrate pH. Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance.

Details:
  • Sensitive pH lithium glass membrane with sensor shield for accuracy and durability
  • Replaceable probe
  • Powered by (4) AAA batteries with auto off function
  • Automatic temperature compensation
  • Manufacturers warranty available (2-year warranty on pen, 1-year warranty on probe)
  • pH 4.00/7.00 Calibration Solutions included, 50 ml each
  • KCL Storage Solution included, 10 ml
 More payment options

Recommended for You

  • Original price $139.00 - Original price $139.00
    Original price
    $139.00
    $139.00 - $139.00
    Current price $139.00

    GroStar 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 details
    Original price $139.00 - Original price $139.00
    Original price
    $139.00
    $139.00 - $139.00
    Current price $139.00
  • Original price $20.00 - Original price $20.00
    Original price
    $20.00
    $20.00 - $20.00
    Current price $20.00

    GroStar pH Calibration Kit (pH 4/7, 8 oz. each)

    What's Included: (1) pH 4.0 calibration solution, 8 oz. (1) pH 7.0 calibration solution, 8 oz.  Details: A pair of essential solutions for ca...

    View full details
    Original price $20.00 - Original price $20.00
    Original price
    $20.00
    $20.00 - $20.00
    Current price $20.00
  • Original price $123.00 - Original price $123.00
    Original price
    $123.00
    $123.00 - $123.00
    Current price $123.00

    farmhand® form & grow

    New & Improved Formula of farmhand grow! Our team of plant scientists has been working hard over the last year to improve our farmhand nutrient...

    View full details
  • Original price $950.00
    Original price $950.00 - Original price $950.00
    Original price $950.00
    Current price $905.00
    $905.00 - $905.00
    Current price $905.00

    Starter Kit

    What's Included: (2) Spray Bottles, 32 oz. GroStar GS1 pH Meter GroStar GS3 EC Meter LED Grow Room Glasses Bonsai Shears, 60 mm Measuring Cup, 1,...

    View full details
    Original price $950.00
    Original price $950.00 - Original price $950.00
    Original price $950.00
    Current price $905.00
    $905.00 - $905.00
    Current price $905.00
    Save $45.00 Save $0.00
  • Original price $165.00 - Original price $280.00
    Original price
    $165.00
    $165.00 - $280.00
    Current price $165.00

    Coco & Peat Moss Grow Plugs

    Optimize root growth with these flexible aerated plugs. Designed for faster root development and plant establishment, these compostable grow plugs ...

    View full details

Compare products

0 of 3 items selected

Select first item to compare

Select second item to compare

Select third item to compare

Compare