This Van London pHoenix Co. V-4001-20BH Electrode is in new condition and guaranteed to functions 100%. It came from a local lab that was upgrading equipment and we can accept pay pal or your credit card. Please contact me with any questions. They are manufactured with a unique solid polymer reference gel for extended life in the most severe applications. ELECTRODE SELECTION Measuring Types: GXV - Multi-purpose pH glass formulation (0-14.00 pH) Platinum Band - For ORP measurement (0-130C) Antimony - For pH measurement in HF applications, 2-7 pH (0-80C) Reference Types: SPR? - Double junction, solid polymer reference (0-130C) Tuff-Tip? - New design incorporating a larger reference junction, surface area electrode guard. LCJ - Dramatically increases the reference junction surface area. Standard material is ceramic, but porous Teflon and porous Kynar are available Track Page Views With Auctiva's FREE Counter