Bluelab Replacement pH Probe for Combo / Maestro Meters Bulky and you're thinking about adding

and you're thinking about adding a second one

25–30 metres of reach

tough metal housing

not fixed designs

Bluelab Replacement pH Probe for Combo / Maestro Meters Bulky and you're thinking about addingBluelab Replacement pH Probe For Combo and Maestro Meters Best for: Bluelab Combo or Maestro meter owners whose original pH probe has been damaged, lost or has simply worn out. Our thoughts Probes are the one part of any pH meter that wears out eventually, however careful you are it's just how the sensor chemistry works. This replacement means you don't need to bin a perfectly good meter body just because the probe's had its day. If your original