Optical Sensors & Detector – UV Index Measurement
UV Index Sensor TOCON_UVI
TOCON_UVI – Compact Erythema-Weighted UV Index Sensor for Real-Time Solar Radiation and Health Monitoring
The TOCON_UVI from SGLUX GmbH is a factory-calibrated UV Index (Erythema-weighted) sensor designed for accurate and reliable monitoring of solar ultraviolet radiation.
It combines a Silicon Carbide (SiC) photodiode, CIE erythema action spectrum filter, and integrated transimpedance amplifier within a compact, hermetically sealed TOCON housing.
This configuration delivers a 0–5 V DC linear output, directly proportional to the UV Index (UVI), eliminating the need for external amplification or complex calibration.
The TOCON_UVI ensures excellent solar blindness (>10¹⁰), long-term stability, and consistent accuracy in outdoor environments.
With traceable calibration (NIST/PTB) and low power consumption, it is ideal for meteorological stations, smart city UV displays, wearable devices, and public health safety systems.
Compact, durable, and precise, the TOCON_UVI provides a professional-grade solution for continuous UV Index monitoring.
Understanding UV Index Sensor TOCON_UVI
The TOCON_UVI measures erythemally effective ultraviolet radiation (280–400 nm) and converts it into a linear voltage signal corresponding to the UV Index.
By integrating a UV photodiode, spectral filter, and low-noise amplifier in a sealed TOCON package, it offers plug-and-play simplicity.
The sensor’s response accurately follows the CIE erythema action curve, ensuring biologically relevant data.
Its built-in temperature compensation and visible-light suppression guarantee reliable results in varying outdoor conditions.
Compact and low-power, the TOCON_UVI is the preferred choice for portable UV Index instruments, fixed monitoring stations, and IoT-based solar safety networks.
Technical Specifications
| Feature | Specification |
|---|---|
| Function | Amplified erythema-weighted UV Index (UVI) sensor |
| Detector Type | Silicon Carbide (SiC) photodiode |
| Spectral Response | 280 – 400 nm (CIE erythema weighted) |
| Peak Wavelength | 295 nm |
| Output Signal | 0 – 5 V DC (linear with UV Index) |
| Measurement Range | 0 – 20 UVI |
| Sensitivity | 1 V ≈ 2.5 UV Index (approx.) |
| Accuracy | ±5 % of reading |
| Visible Blindness (Smax/S>405 nm) | > 10¹⁰ |
| Response Time | < 1 s |
| Amplifier Type | Integrated low-noise transimpedance amplifier |
| Operating Voltage | 5 V DC |
| Output Impedance | < 100 Ω |
| Temperature Compensation | Active circuit built-in |
| Power Consumption | < 10 mW |
| Operating Temperature | −40 … +85 °C |
| Storage Temperature | −55 … +100 °C |
| Housing | Hermetically sealed TOCON epoxy or aluminium |
| Dimensions | Ø 18 mm × 12 mm |
| Calibration | NIST / PTB traceable |
| Compatibility | SENSOR MONITOR 5.0 / VOLTCON / SGCD4 systems |
| Applications | UV Index measurement, meteorology, health safety, environmental monitoring, IoT integration |
Key Features and Advantages
Erythema-Weighted Precision
Spectral sensitivity exactly follows the CIE erythema action spectrum, allowing direct UV Index correlation for public health and scientific use.
Integrated Amplifier and Calibration
Built-in low-noise amplifier delivers a stable, linear 0–5 V DC output. Each unit is factory-calibrated and traceable to NIST/PTB standards.
Solar Blind and Interference-Free
Visible and infrared radiation are suppressed by >10¹⁰, ensuring pure UV measurement even in bright sunlight.
Compact and Robust Design
Encapsulated in a TOCON hermetic package, resistant to humidity, UV degradation, and outdoor environmental factors.
Temperature-Compensated Stability
Active temperature control circuit maintains measurement consistency over a wide operating range from −40 °C to +85 °C.
Fast, Linear, and Reliable Output
Responds within <1 s and provides a clean linear signal proportional to the UV Index — ideal for real-time systems.
Plug-and-Play Integration
No additional electronics required. Connect directly to data loggers, DAQs, or SGLUX SENSOR MONITOR 5.0 systems for immediate measurement.
Low Power Consumption
Consumes <10 mW, perfect for battery-operated or solar-powered IoT systems.
The TOCON_UVI combines precision photodiode technology, integrated amplification, and global calibration standards, making it a trusted solution for professional UV Index and solar radiation monitoring applications.
Applications Across Industries
Meteorological and Climate Stations
Provides continuous, traceable UV Index data for weather forecasts and solar monitoring networks.
Public Health and Safety Displays
Feeds UV Index readings to public alert systems and digital displays for sun exposure awareness.
Smart City and IoT Networks
Integrates into distributed environmental sensor nodes for real-time UV mapping.
Wearable and Portable Devices
Compact design allows integration into personal UV monitoring gadgets for individuals or outdoor professionals.
Research and Education
Used in photobiology, atmospheric research, and climate studies for accurate erythema-weighted UV measurements.
Agriculture and Material Testing
Supports UV monitoring in crop research, polymer degradation studies, and outdoor weathering applications.
The TOCON_UVI offers unmatched reliability, compactness, and calibration accuracy — the ideal sensor for scientific, public health, and environmental monitoring systems worldwide.
Why Choose United Spectrum Instruments?
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Exclusive distributor of SGLUX TOCON_UVI in India
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Expertise in UV Index and environmental sensing systems
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Local calibration traceability through NIST/PTB-certified standards
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Competitive pricing for OEMs, government, and research institutes
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Nationwide integration, technical service, and after-sales support
FAQs
What does the TOCON_UVI measure?
It measures erythemally weighted UV radiation to provide the UV Index (UVI).
Is calibration required after purchase?
No — it is factory-calibrated and NIST/PTB traceable.
Can it be used outdoors permanently?
Yes – its sealed TOCON housing ensures weatherproof and stable operation.
What is the output signal?
A linear 0–5 V DC voltage corresponding to UV Index values.
How does United Spectrum support Indian customers?
By providing integration, calibration, and nationwide service support for SGLUX UV monitoring systems.
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FAQs
What does the TOCON_UVI measure?
It measures erythemally weighted UV radiation to provide the UV Index (UVI).
Is calibration required after purchase?
No — it is factory-calibrated and NIST/PTB traceable.
Can it be used outdoors permanently?
Yes – its sealed TOCON housing ensures weatherproof and stable operation.
What is the output signal?
A linear 0–5 V DC voltage corresponding to UV Index values.
How does United Spectrum support Indian customers?
By providing integration, calibration, and nationwide service support for SGLUX UV monitoring systems.
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