In precision gears and industrial vessels, oil—like blood flowing through the body—plays a decisive role in determining equipment operating efficiency and service life. However, traditional monitoring approaches often rely on multiple standalone instruments, which not only occupy valuable space but also frequently lead to misjudgments due to delayed data synchronization. ZHYQ introduces its oil condition sensor to improve industrial oil monitoring efficiency through a “one device, multiple measurements” solution.

1. ZH90 Mechanical Oil Contamination Sensor: A Quantitative Expert for the Oil “Health Index”
The ZH90 Mechanical Oil Contamination Sensor is specifically designed for online monitoring of changes in oil quality and represents an intelligent sensing solution. It adopts a proprietary measurement technology and is highly sensitive to subtle variations in oil condition, enabling real-time, continuous online monitoring of multiple oil quality parameters. By providing comprehensive, real-time condition monitoring, it effectively ensures the long-term, reliable operation of high-value equipment.
Its application scope includes hydraulic systems, gearbox assemblies, diesel generator sets, turbine units, and air compressors. Applicable fluids include hydraulic oil, gear oil, transformer oil, turbine oil, diesel engine oil, aviation fuel, kerosene, and gasoline.
2. Key Specifications
- Measurement Temperature Range: 0–100 °C
- Temperature Measurement Accuracy: ±0.3 °C (at 25 °C)
- Oil Quality Measurement Range: 1–6
- Measurement Accuracy: ±3% (under test conditions of ambient temperature 20 ± 5 °C and flow rate 30 ± 5 ml/min)
- Signal Output: Digital (RS485 Modbus RTU) and analog (4–20 mA)
- Operating Voltage: DC 12–32 V (RS485); DC 20–32 V (4–20 mA)
- Update Rate: 1 Hz (startup time < 30 s)
3. Twenty-Six Years of Dedicated Technical Expertise
As a leading enterprise in China’s sensor industry, ZHYQ’s R&D capabilities have long been internationally recognized. The company holds nearly 100 national patents, has obtained more than ten international certifications including ISO9001, CE, and ATEX, and exports products to over 80 countries and regions worldwide. At the 2025 SENSOR CHINA exhibition, the new-generation oil condition sensor stood out among global leaders such as ADI and Kyocera, achieving a detection rate of ≥80% and a repeatability accuracy of 0.2% FS.
4. From Industrial Sites to Future Factories: ZHYQ’s Intelligent Ecosystem Blueprint
Driven by the “dual-carbon” goals, ZHYQ integrates green principles into its product DNA. Its products feature low-power designs, with the annual power consumption of a single device equivalent to that of one LED light bulb. Intelligent monitoring functions help customers optimize lubrication cycles; after deployment, one chemical enterprise reduced annual lubricant consumption by 120 tons, equivalent to a reduction of approximately 380 tons of carbon emissions.

