Water Testing

Showing 13–22 of 22 results

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  Replacement EC/TDS Sensor for HM-100 and HM-200

  $49.95
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  Replacement EC/TDS Sensor for HM-500

  $49.95
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  HM Digital Replacement pH Sensor for HM-500 and HM-200

  $54.95
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  HM Digital pH 4.0 buffer solution – 20 packets of 20 ml

  $24.95
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  HM Digital pH 7.0 Buffer Solution – 20 packets of 20ml

  $24.95
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  HM Digital pH Electrode Storage Solution – 20 packets of 20ml

  $24.95
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  HM Digital pH Electrode Storage Solution – 60cc

  $6.95
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  HM Digital 20 Pack Mix: 1000ppm TDS, pH 4, pH 7, pH Storage Solutions

  $24.95
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  HM Digital TDS 1000 ppm Calibration Solution – 20 packets of 20ml

  $24.95
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  HM Digital TDS 1000 ppm Calibration Solution Bottle

  $7.50