Inline Oil Condition Sensor Lub-VDT

Inline Oil Condition Sensor for permanent monitoring of mechanical properties of liquids (viscosity, density, temperature)

Product description

The FluidIX enables inline monitoring of mechanical fluid properties. The compact sensor detects the viscosity and mass density of the surrounding medium on the basis of a low-frequency resonance sensor element. The high measurement accuracy and sensitivity is achieved by a robust and reliable quartz crystal tuning fork resonator. The sensor is long-term stable and is therefore particularly suitable for predictive maintenance and servicing strategies, such as oil condition monitoring. Even with changing process conditions (pressure, temperature, flow), excellent data quality is achieved due to the high measuring rate. The sensor can be easily and cost-effectively integrated into existing machines and systems via digital and configurable analogue interfaces.


Product highlights

  • Inline monitoring of viscosity, mass density & temperature
  • High sensitivity and low drift
  • Robust design
  • Compact dimensions
  • Flexible installation positions
  • Modbus RTU interface
  • Two programmable 4 - 20mA outputs
  • High pressure option available

Product features

Product features

measurement range

  • Viscosity: 1-400 cSt (mm²/s)
  • Density: 0.5-1.5 g/cm³
  • temperature: -40...+125 °C
  • Resonator frequency: 20...25 kHz
  • Sampling rate: 1/s

The unit is suitable for use with the following liquids:

  • Mineral oils
  • Synthetic oils
  • Other permissible fluids on request

technical specifications

technical specifications


  • CE-Conformity EN 61000-6-1/2/3/4
  • Operating Voltage 9...35 V DC
  • Housing material stainless steel
  • Protection class IP 68
  • Dimensions 30x93,4 mm
  • Process connection G 3/8"
  • electrical connection M12-8 A-Coding
  • Weight 150g

Operating conditions:

  • Fluid Temperature -40...+125°C
  • Ambient conditions -40...+105°C
  • max. Oil pressure 50 bar
  • max. particle size 250 μm


  • measurement signal output: 2x 4...20mA
  • Bus protocol: ModbusRTU

Fields of Application

Fields of Application

  • Condition monitoring of fluids
  • Inline oil analysis
  • Industrial automation
  • Retrofitting
  • Mobile machinery


The software offers you the possibility to configure the Inline Condition Sensor.

Use the USB Kit to evaluate and configure the Inline Condition Monitoring Sensor for your application.


With the live data display you can see the current measured values of the sensor in real time.


Scope of delivery

  • FluidIX Lub-VDT
  • Mounting- and Operating Instructions
  • cable length as needed

Prices and availability

For an individual offer for our Fluidix Inline Condition Monitoring Sensor Lub-VDT, please contact us by phone at
+49-6251-8462-0 , by email under This email address is being protected from spambots. You need JavaScript enabled to view it. or by using our contact form.
Our experienced sales team is looking forward to your enquiry!

Blog posts about the Oil Condition Sensor

Predictive Maintenance 4.0 - Continuous oil condition monitoring on the example of two CHPs

Predictive Maintenance 4.0 - Continuous oil condition monitoring on the example of two CHPs

More details
Inline oil condition monitoring: Optimised service planning and machine damage prevention

Inline oil condition monitoring: Optimised service planning and machine damage prevention

More details
New sensor solution: Oil quality measurement in CHPs

New sensor solution: Oil quality measurement in CHPs

More details

Quotation, price information and ordering

Many of our products can be adapted to their fields of application and use individually. Besides the individual factory-set parameters, such as the different measuring ranges, the surrounding media and electrical connections and accessories are also important aspects for the offer.
Therefore, let us advise you professionally and without any obligation!
Our experienced sales staff will be pleased to prepare a suitable offer for you quickly.

Your contact options

Business times:
Monday - Friday 8:00 - 17:00 (CET)


Phone: +49-6251-8462-0

Open contact form