Recommended Use: pH of moist surface, both solid and semi-solid (agar gel plates, meats, bread dough). Small samples in micro sample dish. Low maintenance, gel-filled. • Epoxy, flat-surface body. • Temp. Range: 0-60°C • Reference: Ag/AgCl • Junction: Double • Connector: BNC • Warranty: 1 year Thermo Electron’s new Orion AquaPro Professional combination electrodes offer enhanced performance Ag/AgCl reference electrodes. The patented reference system and double junction design keep silver ions from contacting the sample. Improved electrode lifetime, low maintenance, fast response time and clean junctions are just some of the benefits. pH range 0-14.