Horiba Reference Electrode Internal Filling Solution Item:300 - Reference Electrode Internal Solution for pH, 250 mL - 3200043640 Use the DO calibration solution

Use the DO calibration solution to calibrate Ultrapen PT5 / PTBT5 dissolved oxygen pens

Standard Economy Kit - Case with Custom Cut Foam

with five-stage adjustable LED lighting (roughly 5x brighter side-view and 3x brighter down-view output than earlier models)

secure tool changes in the field

and both a 4-20mA output and dry-contact relay let it integrate directly into a building automation or process control system

Horiba Reference Electrode Internal Filling Solution Item:300 - Reference Electrode Internal Solution for pH, 250 mL - 3200043640 Use the DO calibration solutionInternal filling solutions for refillable HORIBA reference and combination pH electrodes. These are the electrolyte that fills the reference chamber and completes the electrical circuit through the liquid junction without it at the correct level and concentration, the electrode cannot produce a stable reading regardless of how well the glass membrane is working. Refillable electrodes are topped up as part of routine maintenance. The level falls