These low maintenance ROSS pH electrodes offer unmatched benefits that users will not find in any other pH electrode. Compared to conventional electrodes, the proven ROSS reference system exhibits superior stability in measurements, faster response, greater accuracy and precision when measuring samples that vary in temperature or when calibrating in temperatures that differ from the samples.

• ROSS electrodes avoid the long term drift that other electrodes exhibit (ROSS electrodes drift by less than 0,002 pH per day), so recalibration is minimised
• No sample contamination: ROSS electrodes do not contain any silver or mercury to react with the sample or to clog the electrode junction
• Can be used in samples such as biological media, foodstuffs and pharmaceuticals where trace amount of metals cannot be tolerated
• Double junction design allows more control over an important variable
• In order to minimise errors caused by junction potential, users can use a solution that is similar to the sample
• Reference system: mercury-free, TRIS, protein and sulphide compatible
• Maintenance free electrode lifetime with special long-life gel and innovative capillary glass junction design

pH precision: 0,01
pH drift: <0,002 pH/day
Slope: 92 to 102% of theoretical Nernst slope
Isopotential point: pH 7

Accuracy of measuring a pH 6,86 buffer after standardisation at 25 °C: accurate within 0,03 pH for buffer at any temperature between 0 to 100 °C using automatic temperature compensation
Speed of response in 6,86 buffer going from 25 to 75 °C: Response stable to 0,01 pH within 30 seconds
Speed of response between 6,86 and 4,01 buffers at 25 °C: Response stable to 0,002 pH within 15 seconds

Ideal for low ionic strength samples, such as clean waters. Typical applications include: quality control, research, general purpose.
Compatible with Thermo Scientific™ Orion™ Versa Star™, Thermo Scientific™ Orion Star™ A, and Thermo Scientific™ Orion™ Dual Star™ meters, as well as Mettler Toledo™ pH meters.

Warranty: 18 months