The Ryton PPS TNR Flat Tip pH Electrode from DID Inc. is a flat tip pH electrode made of Ryton PPS plastic. It has a double junction Ag/AgCl reference with a ceramic pin junction and features a flat sensing surface for direct contact measurement. This electrode has a 12 mm diameter body, 120 mm length, BNC connector, and 3 m cable. It has a pH range of 0-14 pH, temperature range of 0-80°C, and reference impedance of <500 MΩ. This durable electrode is designed for direct contact measurement in soils, emulsions, slurries, and semi-solids.