pH Filling Solution

pH Filling Solution

Availability: In stock

Code: 0056900


Use this reference solution to properly care for pH sensors (standalone or combination pH/ORP). 

Use for pH sensors installed on:

  • TROLL 9500 Multiparameter Sondes
  • smarTROLL Multiparameter Handhelds
  • Aqua TROLL 400 Instruments

It’s time to replace your reference junctions when the sensor fails to calibrate with a reasonable slope and offset, even after replacing the filling solution. Acceptable slope and offset ranges vary by instrument, so please refer to your instrument manual.


  • 60-mL bottle of reference filling solution