Inline Oil Condition Monitoring

Fluid.iO is a manufacturer of process measurement technology for the measurement, monitoring and control of fluids and a specialist in the oil condition monitoring.

Reduce costs for oil and maintenance
earliest detection of machine damage
Avoid unplanned maintenance

Fluid.iO Sensing Fluid Excellence

Detection, monitoring and control of gases and liquids.

product catalogue

Our entire range of sensors and controls

Downloads

Data sheets, technical descriptions & manuals

Certificates

TÜV / EX / DibT certificates for our products

Our Brands

Benefit from our excellence in the development of innovative product solutions.

E.L.B. Füllstandsgeräte®
Technik für Sicherheit und Umwelt

More than 40 years as a reliable partner for level detection.

ZILA
Conditioning Long Life

More than 30 years as a reliable partner for mechanical and plant engineering.

Marimex®
Inline Viscometers - Our Passion

30 years of technology leadership in inline viscosity measurement.

proMtec®
Highly concentrated Know-how

30 years of leading provider of microwave radiography

learn more about our brands

Mechanical and plant engineering | Building services engineering

Versatile product solutions for the challenges of industry

Water protection with Fluid.iO:
the water quality is right.

We develop certified equipment to prevent environmentally hazardous substances from entering the environment.

WHG-compliant overfill protection.
WHG compliant leakage probes
Turbidity measurement in water treatment
Moisture-controlled ventilation of retention basins

CO₂ Detection with Fluid.iO:
the air quality is right.

We develop gas detectors for the protection of personnel and machinery

CO₂ light indicator for kindergarten, school & workplace
Controlled ventilation in living and adjoining rooms
Air quality monitor for occupational workplace safety
Sensors for detecting leaks of hazardous gases such as methane

Climate and environmental monitoring with Fluid.iO:
Temperature & humidity in buildings in the green range.

Devices for a healthy building and high quality of life

Controls for automatic dehumidification of cellars
Energy-efficient cooling of compressor stations
Climate monitoring of sacred buildings
Smart Home and Smart Building Solutions

Pressure monitoring with Fluid.iO:
Pumps & boilers work smoothly.

Transmitter, switch and limiter for pressure control

Pressure limiters and safety pressure limiters for pressure circuits
Pressure transmitter for high pressure and low pressure in hydraulic applications
CANopen pressure transmitter for mobile machines

Viscosity measurement with Fluid.iO: the quality in the process is ensured.

Measurement and monitoring of viscosity in the chemical, petrochemical and pharmaceutical industries.

Certified viscosity sensors for the food and beverage industry
Avoidance of faulty batches in industrial manufacturing processes
Ensuring optimal process conditions

product highlights

Sensors & measuring devices for precise measurement results, reliable control technology & optimised process control.

ZT Serie

Reliable pressure measurement and optimum process monitoring with the ZT series

4...20 mA
0...10 V

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FluidIX Lub-6

Inline-capable oil condition sensor based on a multi-channel infrared measuring cell for permanent monitoring of the oil condition and prevention of machine damage

Modbus TCP
NDIR

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Fluidix Lub-VDT

Oil condition sensor for permanent monitoring of mechanical properties of liquids

Modbus RTU
4...20 mA
CANopen

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DTS-CAN

Flexible, digital pressure and temperature sensor with CAN bus

CANopen

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cIO CANopen Module

Compact I/O modules for DIN rail mounting

CANopen

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AD-310

programmable Digital Display

4...20 mA
0...10 V

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ZT Serie

Reliable pressure measurement and optimum process monitoring with the ZT series

4...20 mA
0...10 V

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DTS-CAN

Flexible, digital pressure and temperature sensor with CAN bus

CANopen

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ES-Serie

electronic safety switching device

DGRL 2014/68/EU
SIL2
Wasserstoff

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T200.F

Overfill protection for containers

WHG
Überfüllsicherung

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FluidIX Lub-6

Inline-capable oil condition sensor based on a multi-channel infrared measuring cell for permanent monitoring of the oil condition and prevention of machine damage

Modbus TCP
NDIR

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Fluidix Lub-VDT

Oil condition sensor for permanent monitoring of mechanical properties of liquids

Modbus RTU
4...20 mA
CANopen

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VS-D250

Transmitter for ViscoScope viscosity sensors

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LGW-13

CO2 sensor for measuring room air quality with visual and acoustic warning signal output

NDIR

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ZMF-20x Serie

Robust gas sensor for industrial applications with extended operating temperature range and wide-ranging approvals

EX
NDIR
SIL2

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cIO CANopen Module

Compact I/O modules for DIN rail mounting

CANopen

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AD-310

programmable Digital Display

4...20 mA
0...10 V

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OAA-300

Alarm Indicator (Measuring Transducer) with general approval for construction

WHG
IP65

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Discover more products

Pressure transmitters, pressure monitoring and pressure safety devices

Pressure Measurement

Sensors for measuring the concentration of gases: Gas sensors and detectors with optical measuring principle

Gas detection

Sensors and devices for the inline analysis of fluids

Process Analytics

Level devices & level probes: Leakage probes and overfill protection according to WHG with EX approval and SIL

Level Measurement

Temperature

Humidity & Dewpoint

Flow & Velocity

Ventilation

Experience Fluid.iO live at trade fairs and events

Messe

SOLIDS 2026

18.03.2026 - 19.03.2026
Dortmung , DE

Tagung

ISA Texas Channel Automation Expo

09.04.2026 - 09.04.2026
Pasadena , US

Messe

Blog

Product news on our sensor technologies and success stories from the field

Mar 6, 2026

Precise concentration measurement with the US-ICC TOF 1500

In many industrial processes, the precise determination of the concentration or density of liquids is crucial for product quality, process stability, and efficiency. The US-ICC TOF 1500 measuring system offers a highly precise inline solution based on state-of-the-art ultrasonic technology. By measuring the speed of sound in the medium, the system enables reliable and continuous analysis directly within the process.

Jan 9, 2026

CAN-Bus sensors in focus

Besides automotive engineering, CAN bus has become established in many other applications. Fluid.iO CAN bus multisensors measure humidity, temperature, pressure, density, and viscosity in combination.