ROSS Ultra™ electrodes have a virtually drift-free reference with optimum stability, even in samples varying in temperature. Unmatched two year warranty on all six styles. Compatible with Tris buffers.

ROSS Ultra™ Triode electrodes offer all of the benefits of a traditional ROSS electrode with the added benefit of a built-in temperature sensor—measure pH, mV, and temperature all in one electrode! Available in both a refillable and gel version. 8123E, 8123F are for Orion Star Series Meters, 8123G is for Orion PerpHect Meters, and 8123H is for Orion Aplus Series Meters.

ROSS™ combination electrodes, with a unique internal reference system developed by Orion, offer greater accuracy, reproducibility, stability and faster response times than any other standard electrode line. ROSS electrodes minimize drift, even in samples that vary in temperature. Compatible with Tris buffers.

All ROSS electrodes listed have a temperature range between 0°C to 100°C and a ROSS internal reference