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Apera pH/EC/PPM 5-in-1 Pen Tester Kit with replaceable double-junction probes

Apera Instruments ★ 3.4/5 · ItemOracle Score Premium

$152.55
Last verified 18 hours ago · Subject to change
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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

A lab-grade 5-in-1 tester for pH, EC, TDS (500/700ppm), and temperature. Noted for accurate readings, easy calibration, and quick results, with a solid build and reliable performance

Highlights

  • 5-in-1 pH/EC/TDs/temperature
  • replaceable double-junction probe
  • lab-grade meter designed for growers

Pros

  • accurate readings out of the box
  • simple calibration process
  • clear instructions and quick results
  • replaceable double-junction pH/EC probe
  • well-made construction

Cons

  • mixed opinions on durability

Best For

  • hydroponics water quality testing
  • nursery irrigation monitoring
  • laboratory-quality water parameter checks
  • on-site water testing for growers
  • pH/EC/TDs/temperature tracking

Features

  • Lab-grade pH/EC/temperature testing with replaceable double-junction probe
  • Measures pH, EC, 700ppm, 500ppm, and temperature with robust probes
  • 2-point calibration completed within a minute on HD backlit display
  • Electrode condition indicator and calibration reminder support routine maintenance
  • Titanium EC sensor and double-junction pH sensor for durability

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