Glass pH (ORP) composite electrode 1, measuring electrode, and reference electrode are integrated together, with strong anti-interference performance. 2. Hydrophobic and anti fouling polytetrafluoroethylene (PTFE) liquid interface, anti blocking, ensuring accurate measurement for a long time. 3. Gel electrolyte, no need to supplement KCL solution. 4. Plug in electrode head with standard pg13.5 thread. 5. Four different sensitive glass films suitable for different occasions. The measuring range is 0 ～ 14pH 0 ～ 10pH 3 ～ 14pH 2 ～ 12pH ± 1000MV structure PTFE liquid junction, gel electrolyte does not need to be supplemented, glass size φ 12 × 150mm thread pg13.5 standard thread electrode connector reference electrode Ag/AgCL temperature range is 5 ～ 90 ℃ 20 ～ 100 ℃ 5 ～ 90 ℃ 0 ～ 60 ℃ 0 ～ 100 ℃ zero potential 7 ± 1PH connecting cable 3m low-noise cable or user defined, BNC plug, connecting cable can be removed, application range is general industrial process, high temperature and strong acid occasions, high temperature and alkali resistant occasions, low temperature and pure water (φ 5 × 2.5mm platinum ring) used in industrial process