Bluelab Inline pH Probe

Bluelab Inline pH Probe

Bluelab Inline pH Probe

Regular price $259.99
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The Bluelab Inline pH Probe is a replacement probe for the Guardian Monitor Connect In-Line.

Unfortunately, pH Probes do not last forever as they age through normal use and will eventually fail.

With good care and use (keeping the probe tip wet and cleaning once a month), you will extend its life.

Replace only the pH probe, not the whole meter!


  • Double-junction probe reduces reference contamination, extending longevity  
  • 3/4” NPT thread fits inline mounting; use with 1” adapter 
  • Fully waterproof - not just water resistant  
  • Pressure rating of 7 bar pressure or 100 psi to withstand line pressure and turbulence 
  • Liquid flow naturally cleans the flat pH measurement surface 
  • Adapted internal structure for mounting in any direction 
  • 3-metre cable for measuring in hard-to-reach locations 
  • Fast sensor response ensures quick and accurate measurements  
  • Effective in solutions of 0.2 EC and above 
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