Triode™ 3-in-1 pH/ATC Probe Epoxy pH Electrode (Orion 9157BN)

Recommended Use: Routine pH. Ideal for field or plant use.
Use with Orion A Series and Aplus Series 210, 230, 250, 410, 420, 520, 525, 710, 720, 920 Meters. Refillable; BNC/DIN