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