The GP-III Immersion pH Sensor is design purposefully for tough immersion applications. The RYTON body plastics combined with our advanced high capacity Polypropylene reference are design for chemical resistance, including sulphides. Utilising our proprietary toughened glass the sensor is ideal for slurries and abrasive media as well as being capable of resisting acids or fluorides that may chemically attack the glass. The ¾” x 1” MNPT threaded connection allows for flexible immersion points into the process. With appropriate sealing onto an immersion rod, the sensor may also be fully submersed without the requirement of additional sealing. Both body plastics and advanced reference system give this sensor an excellent operating range up to 105°C. This sensor is ideal for any applications where process media containing free sulphide species such as hydrogen sulphide gas (H2S), hydrogen sulphide (HS-) or sulphide ions (S2-). Any measurement where aggressive chemical cleaning is needed to remove fouling or low maintenance operation is required with minimal cleaning and recalibration. Digital Smart Sensor Technology (DSST) This sensor is available with our digital smart sensor technology. This plug and play sensor has a quick connect fitting, eliminating the need for hard wiring to the analyser. On-board sensor memory allows the storage of calibration data, analyser configurations and sensor service history. This allows the sensor to be conveniently maintained and calibrated off-site or in the laboratory and pre-programmed with calibration data and analyser configurations. This stored information automatically uploads to the analyser upon connection and eliminates the need for any interaction with the analyser, greatly simplifying the change-out of sensors. A service log stored on the sensors is ideal for maintenance and quality assurance records.