The GF Signet 2774-2777 pH and ORP electrodes feature a unique foul‑proof DryLoc connector with gold‑plated contacts designed for use with GF Signet 2750 and 2760 preamplifiers. PTFE double reference junction and large reference chamber combine to extend service life. Embedded temperature element in sensing tip provides quick, accurate temperature response.

Flat versions allow sediment and particles to sweep past the measurement surface, minimizing abrasion, breakage, and coating. Bulb versions for general‑purpose applications. Specially designed chambers keep electrolyte in place, allowing installation at any angle, even inverted. Compatible with all GF Signet pH/ORP instruments.

Applications include water treatment, demineralizer regeneration, cooling tower protection, aquatic life support, pool/spa control, and neutralization systems.