Apera Instruments AI104G GroStar Series GS4 pH/EC/500ppm/700ppm Combo 5-in-1 Pen Tester Kit with Replaceable Double-Junction pH/EC Probe for Hydroponics Water Quality Testing, Gen II

★★★★★ 4.3 102 reviews

$179.00
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$179.00
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Product details

Management number 210767554 Release Date 2026/04/02 List Price $71.60 Model Number 210767554
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Apera Instruments GroStar GS4 pH/EC/ppm Combo Pen Tester (Gen II) is a lab-grade multiparameter meter designed specifically for growers to easily manage crop success, featuring a replaceable pH/conductivity combo sensor and a grower-friendly workflow along with other intelligent functions and features that help reduce the guesswork and give you the confidence in every measurement.

  • Lab-grade pH/EC/TDS meter designed specifically to meet growers' needs and habits
  • Measures pH, EC, 700ppm, 500ppm, and temperature with premium probe technologies, ensuring high accuracy and durability with minimal maintenance
  • Grower-friendly calibration workflow on an HD backlit screen allows you to finish 2-point calibration within a minute
  • Replaceable combo probe with double junction pH sensor and titanium EC sensor
  • Electrode condition indicator and calibration reminder function help you perform proper maintenance in a breeze
Batteries 4 AAA batteries required. (included)
Item Weight 4.7 ounces
Manufacturer Apera Instruments
Item model number AI104G
Product Dimensions 7 x 1.5 x 1.3 inches

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