ROSS Ultra™ pH Electrodes
ROSS Ultra Electrodes offer the best stability and drift free measurements of all ROSS electrodes.
The reference system is designed to provide an enhanced life. We are so confident of it that the warranty is double that of standard ROSS electrodes.
Refillable ROSS Ultra electrodes have a two year warranty while the low-maintenance Triode™ has an 18 month warranty.
The ROSS Ultra line features glass or epoxy electrodes, refillable or low maintenance design, flat surface and semi-micro designs. ROSS Ultra Triodes include a built-in temperature sensor and provide faster temperature response than other 3-in-1 electrodes.
The Thermo Scientific Orion ROSS Electrode line offers a wide variety of quality pH electrodes to choose from. There are many different factors to consider when you selecting a pH electrode to ensure you select the electrode that will suit your needs.
ROSS Ultra™ Electrode Specifications:
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 |
Reference System: | Mercury free, TRIS, protein and sulphide compatible |
Warranty: | 24 months for refillable electrodes, 18 months for low maintenance versions |
You will need to consider body materials, body styles, and sample requirements. For easy selection, we have broken down the range into several sub-categories, with more information and products on each tab.
ROSS Ultra
ROSS Ultra Glass Electrodes
ROSS Ultra Glass Bodied Electrodes offer the ultimate measurement stability and the least long-term drift. The electrodes are 12mm in diameter, can be used in a wide variety of samples and are easy to clean. They also have the added benefit of a two year warranty.
ROSS Ultra Epoxy Electrodes
ROSS Ultra Epoxy Bodied Electrodes offer the ultimate measurement stability and the least long-term drift. The electrodes are 12mm in diameter and the extremely durable, rugged body helps prevent accidental breakage.
ROSS Ultra Semi-micro Electrodes
ROSS Ultra Semi-micro Electrodes are designed for applications where sample volume is limited and can take measurements in samples of 0.2mL volume. They are available with chemically-resistant glass (6mm tip) or epoxy (8mm tip) bodies. They also have the added benefit of a two year warranty.
ROSS Ultra Rugged Bulb Electrodes
ROSS Ultra Rugged Bulb Electrodes offer the ultimate measurement stability and the least long-term drift. The electrodes are 12mm in diameter and have an extra durable pH bulb to help prevent breakage. They also have the added benefit of a two year warranty.
ROSS Ultra Flat Surface Electrodes
ROSS Ultra Flat Surface Electrodes offer the ultimate measurement stability and the least long-term drift. The electrodes are designed for use in small samples or ideally measuring the surfaces of solid or gel samples. They also have the added benefit of a two year warranty.