
In today’s era of sustainable energy transition, precise solar radiation monitoring has become increasingly crucial. Among the most sophisticated instruments in this domain is the automatic tracking solar radiation sensor — an intelligent device that traces the sun’s path throughout the day to deliver optimal solar irradiance measurements. These tracking sensors offer superior accuracy and comprehensive data collection compared to traditional fixed sensors, which often face challenges with angular deviations and incomplete data capture due to varying solar positions.
What Is an Automatic Tracking Solar Radiation Sensor?
An automatic tracking solar radiation sensor represents a sophisticated system that continuously adjusts its position to maintain alignment with the sun. Utilizing a dual-axis tracking system, these advanced instruments excel at measuring both direct normal irradiance (DNI) and global horizontal irradiance (GHI) with remarkable accuracy. They play vital roles in:
- Solar power plant monitoring
- Photovoltaic (PV) system performance analysis
- Meteorological research
- Environmental and climate data collection
Primary advantages of automatic tracking systems include:
- Superior measurement precision through optimal solar alignment
- Enhanced effectiveness in solar energy analysis and predictions
- Dependable long-term data acquisition for scientific and industrial purposes
EcoSentec’s Solution: The ES-S228TM Automatic Tracking Solar Radiation Sensor
At EcoSentec, we’ve engineered a premium, industry-ready solution that merges precise solar tracking with robust durability — the ES-S228TM.

🌞 Dual-Axis Automatic Sun Tracking
The ES-S228TM incorporates an advanced dual-axis tracking system that perpetually aligns with solar movement. Achieving a tracking precision of <0.5°, it guarantees optimal pyrheliometer orientation for direct radiation measurement.
⚙️ Integrated High-Accuracy Sensors
The configuration features:
- A first-class pyrheliometer for measuring direct solar irradiance
- A first-class pyranometer for global solar irradiance
These sensors meet WMO and ISO standards, delivering premium data quality for research and industrial applications.
🌦 Built for Harsh Environments
Engineered for sustained outdoor deployment, the ES-S228TM maintains reliable operation in challenging conditions:
- Temperature range: -40°C to +85°C
- Humidity: 0–100% RH
- Rain sensor & automatic shutters protect optical components and ensure consistent performance during adverse weather.
🔌 Flexible Output & Communication
System integration is straightforward with:
- RS485 (Modbus-RTU) digital interface
- Analog outputs: 0–5V or 4–20mA
- 12–24V DC low power operation
🛠 Smart Features
- Automatic leveling mechanism for simplified installation and setup
- Continuous performance monitoring with advanced diagnostic capabilities
- Space-efficient and robust construction enabling quick field deployment
Applications of the ES-S228TM
The ES-S228TM serves multiple professional sectors effectively:
- Solar Power Facilities – Delivering continuous solar input analysis for maximizing energy generation
- Weather Monitoring Stations – Gathering precise irradiance measurements for atmospheric and climate research
- Academic and Research Institutions – Enabling detailed solar energy investigations and environmental studies
- Calibration and Testing Centers – Operating as a benchmark instrument for solar sensor verification
Why Choose EcoSentec?
At EcoSentec, we combine cutting-edge sensor technology with unwavering quality standards. The ES-S228TM exemplifies our extensive experience in environmental monitoring, offering clients:
- Sustained performance reliability
- Premium measurement precision
- Comprehensive technical assistance and system customization
If you have any questions or customization requirements, please contact us.