The best, just got better…

OQSX-G2 Sensor

OQSx-G2 Oil Quality Sensor

The OQSx-G2 is the world’s most advanced and flexible real-time oil quality/condition monitoring sensor. Suitable for application in any commercial or industrial environment from the smallest genset, to the largest engines on ships and Mining equipment.

Easy to install, the OQSx-G2 continually analyses oil in real-time whilst equipment is in operation and provides an accurate statement of oil condition. Any wear or contamination is instantly detected, measured to an accuracy of 0.01%, and reported.

  • FULL SPECTRUM HOLISTIC (FSH™) – Detects all and any Wear and Contamination: water, acid, fuel, viscosity, different oil types, carbon, particles etc.
  • ABSOLUTE ACCURACY – The FSH technology within our sensor enables it to have a oil quality change sensitivity detection of 0.01% (10ppm) with an Accuracy margin of +/-0.5%.
  • REAL-TIME – Continuously analyses oil condition on operating equipment and reports oil condition every two seconds.
  • ROBUST & RELIABLE – Proven around the world for use in even the most extreme industrial and commercial applications.
  • EASY TO INSTALL – Quick and easy to install on any equipment with plug & play integration with any existing data reporting and display systems
OQD Mobile App

OQD Mobile (OQDm)

The OQD Mobile (OQDm) app can be downloaded onto your Android device to enable communication with our OQD Express (OQDe) unit via Bluetooth. This allows you to easily check the readings from any OQDe within a 10m radius and download the logged data to further analysis.

  • WIRELESS CONNECTIVITY – Use your mobile phone to instantly connect by Bluetooth to any OQDe, view and manage live data.
  • LIVE DATA – Display and record real time oil condition.
  • DATA LOG DOWNLOAD – Download logged data for analysis or forwarding to colleagues by email.
  • HEALTH & SAFETY – Allows operators to access data from active machinery at a safe distance.

About CIS Industrial Services

CIS Industrial Services ia leader in the supply of advance Oil Condition Monitoring technologies, Vibration Monitoring technologies, products, system and services.

Our products we represent are trusted by the worlds leading industrial and commercial companies to monitor Vibration, and Oil, helping to optimise equipment productivity, reduce operating cost, thereby remaining competitive in a global economy.

Should you wish to lean more about our Products and Services, please do not hesitate to contact Lourens Janse Van Rensburg via email: or alternatively via phone: +27 (0) 79 512 8027


Mining and Mineral Processing

The Challenge

Maximising the productivity of large mobile plant equipment was a critical performance criteria for a large mining operation.

The Solution

Intelligent Oil Condition Monitoring deliver a measurable improvement in equipment active operating time.

Oil Quality Sensor (OQSx) were fitted to the Gearbox, Engines and Hydraulic Systems of a total of 36 large plant machines such as Rock Crushers, Excavators and Dump trucks.

Operator alert display units (Oil Quality, OQDe) were fitted in the cabs of each vehicle to provide immediate conditions alerts, whilst data was also streamed back to the maintenance depot where it was used to predict optimal services schedules.

The customer benefited from reduced servicing through being able to maximize the true life of their oil, coupled with reduced equipment wear associated issues.

Tan Delta Oil Quality Sensor


Reduced serving through being able to maximize the true life of their oil, and extended the running hours of site critical machinery.


Cost Effective

Oil consumption was reduced by over 19% as the sensor showed oil was being replaced when still viable

Reduced Waste

Oil disposal cost were dramatically reduced due to fewer oil changes.

Improved Maintenance Schedules

Equipment failure cost were reduced due to improved maintenance schedules and auditing of correct procedures through analysis of the sensor data

Prevent Catastrophic Failure

Contamination which could have caused serious damage was immediately identified by the sensor allowing instant remedial action.


The site has reduced their annual expenditure on oil consumption alone by over R5m ($360k) thanks to Tan Delta Oil Condition Monitoring products.

To see how we can assist you in saving money, please call Lourens Janse Van Rensburg on +27 (0) 79 512 8027 or alternatively via email, Or visit our website:

Plant Uptime • Plant Safety • Asset Reliability