Apera Instruments AI804G Replacement pH / EC Combo Probe for GS4 pH / EC / ppm Combo Pen

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Apera Instruments AI804G Replacement pH / EC Combo Probe for GS4 pH / EC / ppm Combo Pen
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Condition: new
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Overview

Features:

  • 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 
⚠️ Attention CA Residents: Prop 65 Warning

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