Sodium-selective electrode with polymer membrane.
This ISE has to be used in combination with a reference electrode and is suitable for:
ion measurements of Na+ (10-6 to 1 mol/L) in aqueous solutions
ion measurements in small sample volumes (minimum immersion depth 1 mm)
titrations in aqueous solutions
Thanks to a robust/break-proof plastic shaft made of PVC, this sensor is mechanically very resistant.