Product Description
Mettler Toledo InPro3250i/SG/120
The Mettler Toledo InPro3250i/SG/120 is a high-performance, digital pH sensor designed for demanding and sterile applications in the biotechnology, pharmaceutical, and chemical industries. Equipped with Intelligent Sensor Management (ISM) technology, this electrode offers predictive diagnostics to reduce maintenance and prevent unexpected failures. Its pre-pressurized liquid electrolyte and silver-ion trap prevent the diaphragm from clogging, ensuring reliable and stable measurements even in challenging process media. The SG (Steam-Sterilizable Glass) membrane is optimized for stability and accuracy during and after sterilization (SIP) and autoclaving cycles, making it an ideal choice for hygienic processes where precision and uptime are critical.
Technical Specifications:
- Measurement Range: pH 0 – 14
- Operating Temperature: -10 °C to 140 °C (14 °F to 284 °F)
- Pressure Resistance: 0 to 6 bar (0 to 87 psig) at 25 °C
- Reference System: Argenthal with silver-ion trap, pre-pressurized liquid KCl electrolyte
- Shaft Length (a-length): 120 mm
- Technology: Digital with Intelligent Sensor Management (ISM)
- Certifications: ATEX, IECEx, FM for hazardous area use

Mettler Toledo InPro3250i/SG/120
High-performance Mettler Toledo InPro3250i/SG/120 digital pH sensor with ISM technology, designed for reliable and accurate measurement in sterile bioprocess and pharmaceutical applications.






