Is a 5mm Tube too small for your pH electrode to fit into?

Most pH electrodes aren't small enough to fit even a 10mm EPR tube. Not ours. The Wilmad Combination pH Electrode for NMR/EPR Tubes fits easily into a thin wall 5mm EPR tube (e.g. 703-PQ).

pH Range	0 - 14
Temperature Range	0 to 70 C
Resolution	0.02
Sodium Error	0.1 at pH 12
Resistance at 20 C	100-1000 Ohms
Reproducability	99% within 1 min.

It's the only electrode your lab will ever need. It's so versatile, it works for most any pH measurement you have.

pH Electrodes

Product Number	Description	Price
6030-02-BNC	Combination pH Electrode with BNC Connector (also known as #5 connector)	$344.10
6030-02-6	Combination pH Electrode with radiometer connector -1/4" diameter	$360.45

Wilmad Electrolytes and Electrode Cleaners

Product Number	Description	Purpose	Price
18513	Calomel Reference Solution	3M KCL saturated with AgCl	$18.50
18508	Electrode Cleaner	Enzymatic Cleaner for removing protein coating	$17.25
18528	Diaphragm/Junction Cleaner	Thiol-based cleaner for cleaning clogged junctions	$21.85
18823	Electrode Storage Solution	3M KCl (Potassium Chloride)	$17.25