DO Sensor InPro6860i/12/120/nA/HD

DO Sensor InPro6860i/12/120/nA/HD

Anti-Bubble Dissolved Oxygen Sensor.The InPro 6860i/12/120/nA/HD is an optical dissolved oxygen sensor with a mechanically modified hydrophilic surface. Combined with its tilted design, it prevents bubble accumulation, creating a highly stable measurement signal.

Increased Yield and Product Quality

The angled tip and hydrophilic surface prevent bubble formation. This eliminates noise for improved production efficiency and process control.

For Digital & Analog Bioreactors

This anti-bubble DO sensor has digital (MODBUS, RS-485) and analog (nA) output signals for compatibility with benchtop bioreactors and transmitters.

Sterilizable and Autoclavable

The InPro 6860i/12/120/nA/HD provides fast, precise oxygen measurement, even after repeated autoclaving and sterilization cycles up to 140° C.

DO Sensor InPro6860i/12/120/nA/HD
Specifications - DO Sensor InPro6860i/12/120/nA/HD
Measurement Parameter
Measurement Technology
Optical fluorescence quenching
Measurement Range (Concentration)
0–60 % O2 saturation
± (1 % of the reading + 8 ppb)
Response Time
T98 = < 90 s
Primary Media/Application
Pharmaceutical/Life Science Production
ISM (Digital) or Analog
ISM (Digital)
Anti-Bubble Design
Wetted Metallic Material
316L stainless steel
Surface Roughnes of Wetted Material
N5/Ra16 (Ra=0.4μm/16μin)
Sensor Diameter
12 mm
O-Ring Material
25 V DC; 0.1 A
Process Connection
Pg 13.5
Sensor Length
120 mm
Wetted membrane material
Connector Design
Model Family
InPro 6860i
CIP resistant
Measuring Temp. Range
41 °F – 140 °F
Mechanical Temp. Range
-4 °F – 284 °F
Measuring Temp. Range
5 °C – 60 °C
Mechanical Temp. Range
-20 °C – 140 °C
Operating Pressure (Bar)
0.2–6 Bar
Operating Pressure (PSI)
0–87 PSI
Design Pressure
87 psi
Design Pressure
6 bar
Analog Integration
Simulated electrochemical nA signal
Digital Integration
Cable Connector
VP6 / VP8 (analog / digital)
Hygienic/Biocompatibility Approvals
FDA/USP Class 7
Hazardous Area Approvals
ATEX/IECEx: II 1/2G Ex ia/ib HC T6 Ga/Gb II1/2D Ex ia/ib nie T83 °C Da/Db
Certificates & Approvals
Quality certificate, Material certificate 3.1, Surface finish certificate, ATEX/IECEx certificate, FDA/USP Class IV
Material Number(s)

Watch the video on the Anti-Bubble OptoCap

Stable, Reproducible Yields

Achieving consistent batches and product quality requires reliable oxygen measurement. The hydrophilic surface finish and tilted tip of the oxygen sensor prevent measurement interference from bubble accumulation that can affect yield and product quality.

Hygienic and Durable Design

Avoiding biofouling and ensure a stable signal with the PTFE coating of the OptoCap™ oxygen-sensing element. This ensures that the InPro 6860i/12/120/nA/HD has the durability to withstand multiple autoclaving and standard CIP / SIP cycles.

Uncompromising Reliability

This optical DO sensor offers the benefits and predictive diagnostics of Intelligent Sensor Management. Achieve faster start up with Plug and Measure technology. Increased system availability is provided by maintaining a stock of pre-calibrated sensors.

Exceptional Performance

The 120mm InPro6860i/12/120/nA/HD reduces both handling time and running costs due to lower calibration and maintenance needs. This performance is achieved by an electrolyte-free, one-piece replacement part that is monitored by predictive diagnostics.


Learn more about InPro 6860i optical oxygen sensor

Product Brochures & Datasheets

Intelligent Optical Oxygen Sensor Easy Handling – Exceptional Performance
Continuous dissolved oxygen (DO) measurement is critical during fermentation and cell culture. The InPro 6860 i HD Anti-Bubble™ Oxygen Sensor is mecha...

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Application Soutions

InPro 6860i Modbus Programmers Guide
On the web, there are plenty of Modbus testing tools or modbus libraries available for C++, Phyton or other programming languages. For manually access...


Digital Sensor Integration

The M100 Sensor Mount (SM) is a single-channel transmitter for connecting ISM optical dissolved oxygen sensors to a biocontroller. The Bluetooth 4.0 interface is compatible with the PC-based and mobile versions of iSense software.

Material No.: 30365367

Sensor Calibration & Maintenance Tools

PC based software designed to guide you through sensor maintenance, calibration and record keeping for ISM Sensors.

Material No.: 30130614

iSense version for the pharmaceutical industry that allows for electronic records and signatures, making it FDA 21 CFR Part 11 and GMP Volume 4 Annex 11 ready.

Material No.: 30283620

This is a USB iSense adaptor for connecting ISM RS485 VP sensors to iSense for pH, DO and CO2 measurement and sensor calibration.

Material No.: 30014134

A universal device for connecting both 1-wire and RS485 ISM sensors to a computer running iSense software.

Material No.: 30130631

Material No.: 52300400


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DO Sensor InPro6860i/12/120/nA/HD
USP Class VI
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