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Apera Instruments GroStar Series GS4-E Replacement pH/EC Combo Probe

4.8 (2) Write Review
Free shipping on orders over $29.99

$80.00

$ 33 .99 $33.99

In Stock
  • Replacement probe for GroStar GS4 pH/EC combo tester
  • Measures pH, conductivity (EC and PPM) and temperature
  • Combo probe built with lithium glass membrane and titanium alloy to ensure high accuracy and durability
  • double junction structure uses blue gel electrolyte without the air bubble
  • 1-year warranty


The replacement pH/conductivity combo probe for GroStar GS4 pH/EC/ppm Combo Pen, suitable for general water solutions


PoW3r
Reviewed in the United States on August 8, 2024
I bought the replacement of the original grostar that last 1 mont..the replacement stop working after a few weeks, stop reading ph, ec and ppms are ok.Im so dessapointed, also because it is not a cheap meter.,
Leeann Lynette
Reviewed in the United States on August 26, 2024
I just did my first calibration on this replacement and it's already 87 percent used up. It's worse than what I was trying to replace.
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