Orion green electrodes have a durable epoxy body that can be used under rugged conditions. Use to read pH from 0 to 14. Choose low-maintenance gel-filled or high-accuracy, reusable refillable electrodes, depending on your application and budget. Available with single-junction reference for routine pH measurement or double-junction for use with TRIS buffers, proteins, and sulfides.

Waterproof BNC connectors provide a waterproof and secure connection when used with an Orion Star™ Series meter. This BNC connector is compatible with any pH meter with standard BNC input.