InPro 3253

InPro 3253 & InPro 3253i pH/ORP Probes

High Performance Measurements in Biopharmaceutical Applications

The InPro 3253 and InPro 3253i are pre-pressurized, liquid filled, pH and ORP sensors. These hygienic pH sensors use a steam-sterilizable pH glass membrane and automatic temperature compensation to ensure the most accurate pH measurement in biopharmaceutical production. The InPro 3253 can withstand cleaning and autoclave cycles and meets hygienic guidelines. The InPro 3253i is a digital, Intelligent Sensor Management (ISM) pH sensor with advanced diagnostics to help manage maintenance.

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Model Family: InPro3250(i)xpH Sensing Technology: Steam Sterilizable Glass Membrane (A41)x
Measurement Parameter
Primary Media/Application
ISM (Digital) or Analog
Sensor Length
pH Sensing Technology
1
Refillable Electrolyte
Sterilizable/Autoclavable
Model Family
1
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Model Family: InPro3250(i)xpH Sensing Technology: Steam Sterilizable Glass Membrane (A41)xClear All
21 Results
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pH Sensor InPro3253i/SG/225

The InPro 3253i SG/225 is a digital, pre-pressurized, low maintenance ISM pH & ORP sensor combined with a temperature sensor for in-line measurement in demanding applications. The 225 mm version is optimal for medium installation lengths.

Measurement Parameter
pHORP/Redox
Primary Media/Application
Pharmaceutical/Life Science Production
ISM (Digital) or Analog
ISM (Digital)
Sensor Length
225 mm
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pH Sensor InPro3253i/SG/325

The InPro 3253i SG/325 is a digital, pre-pressurized, low maintenance ISM pH & ORP sensor combined with a temperature sensor for in-line measurement in demanding applications. The 325 mm version is optimal for medium to long installation lengths.

Measurement Parameter
pHORP/Redox
Primary Media/Application
Pharmaceutical/Life Science Production
ISM (Digital) or Analog
ISM (Digital)
Sensor Length
325 mm
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pH Sensor InPro3253i/SG/425

The InPro 3253i SG/425 is a digital, pre-pressurized, low maintenance ISM pH & ORP sensor combined with a temperature sensor for in-line measurement in demanding applications. The 425 mm version is optimal for long installation lengths.

Measurement Parameter
pHORP/Redox
Primary Media/Application
Pharmaceutical/Life Science Production
ISM (Digital) or Analog
ISM (Digital)
Sensor Length
425 mm
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pH Sensor InPro3253/120/PT100

The InPro 3253 120/PT100 is a pre-pressurized, liquid filled, low maintenance pH sensor combined with a PT100 temperature sensor for in-line measurement in demanding applications. The 120 mm version is optimal for short installation lengths.

Measurement Parameter
pH
Primary Media/Application
Pharmaceutical/Life Science Production
ISM (Digital) or Analog
Analog
Sensor Length
120 mm
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pH Sensor InPro3253/225/PT1000

The InPro 3253 225/PT1000 is a pre-pressurized, liquid filled, low maintenance pH sensor combined with a PT1000 temperature sensor for in-line measurement in demanding applications. The 225 mm version is optimal for medium installation lengths.

Measurement Parameter
pH
Primary Media/Application
Pharmaceutical/Life Science Production
ISM (Digital) or Analog
Analog
Sensor Length
225 mm
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pH Sensor InPro3253/250/PT100

The InPro 3253 250/PT100 is a pre-pressurized, liquid filled, low maintenance pH sensor combined with a PT100 temperature sensor for in-line measurement in demanding applications. The 250 mm version is optimal for medium installation lengths.

Measurement Parameter
pH
Primary Media/Application
Pharmaceutical/Life Science Production
ISM (Digital) or Analog
Analog
Sensor Length
250 mm
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FAQs

What is the InPro 3253?

The InPro 3253 is a pre-pressurized, liquid filled, METTLER TOLEDO pH and ORP sensor with low maintenance requirements, made for high performance measurements in demanding applications. Designed with a steam-sterilizable pH glass membrane, the InPro 3253 can withstand the rigors of chemical and biopharmaceutical processes, including autoclaving, while complying with relevant hygiene and safety regulations. The InPro 3253i is the digital version of this sensor and offers ISM advanced predictive diagnostics to simplify both installation and calibration.

What is the difference between the InPro 3253 and InPro 3253i?

The difference between the InPro 3253 and the InPro 3253i is that the InPro 3253 uses analog technology while the InPro 3253i uses digital Intelligent Sensor Management technology (ISM). ISM advanced predictive diagnostics are featured with the InPro 3253i digital pH sensor to help manage your maintenance. The InPro 3253i provides a clear display of the sensor's lifetime remaining, the time remaining until calibration is needed, and counts of SIP and CIP cycles it has undergone.

What lengths are the InPro 3253 models available in?

The InPro 3253 and InPro 3253i pH sensors are available in a variety of lengths, optimal for different installation requirements. The InPro 3253 family of pH sensors is available in 120 mm, 225 mm, 325 mm, and 425 mm lengths.

Which model of the InPro 3253 measures ORP?

All models of the InPro 3253i digital pH sensor have the ability to measure ORP (oxidation-reduction potential, or redox) in addition to pH. Additionally, select "SG" (solution ground) models of the analog InPro 3253 can also measure ORP. The ORP is an important parameter to describe the electrochemical condition in a process. It is often used in chemical and pharmaceutical processes and is a common measurement in biotech applications as well.

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