Optical Sensors & Detector – UV Index Measurement
UV Index Sensor TOCON_E2
TOCON_E2 – Precision UV Index Sensor for Continuous Erythema-Weighted Solar Radiation and Environmental Monitoring
The TOCON_E2 from SGLUX GmbH is a factory-calibrated erythema-weighted UV Index (UVI) sensor designed for reliable and accurate solar radiation measurement.
It integrates a Silicon Carbide (SiC) photodiode, a CIE erythema-matched optical filter, and a low-noise transimpedance amplifier in one compact TOCON housing.
This design delivers a linear 0–5 V DC output, directly proportional to the UV Index, without the need for external electronics or calibration.
With high solar blindness (>10¹⁰) and temperature-stabilised circuitry, the TOCON_E2 ensures stable readings under changing sunlight and climate conditions.
Each sensor is traceably calibrated to NIST/PTB standards, guaranteeing reproducible results for scientific, industrial, and public applications.
Its robust and compact form makes it ideal for meteorological networks, smart-city UV monitoring systems, and personal exposure measurement.
Understanding UV Index Sensor TOCON_E2
The TOCON_E2 measures biologically effective ultraviolet radiation in the 280–400 nm range, corresponding to the CIE erythema action spectrum.
By combining the detector, spectral filter, and precision amplifier in a sealed TOCON module, it produces a ready-to-use, linear output representing UV Index (UVI) values.
This plug-and-play configuration simplifies integration into monitoring stations, portable instruments, and IoT sensor networks.
The sensor’s solar-blind SiC detector ensures exclusive UV sensitivity, while built-in temperature compensation maintains measurement stability in outdoor conditions.
Compact, calibrated, and maintenance-free, the TOCON_E2 provides professional-grade UV Index monitoring for environmental safety and research.
Technical Specifications
| Feature | Specification |
|---|---|
| Function | Amplified erythema-weighted UV Index (UVI) sensor |
| Detector Type | Silicon Carbide (SiC) photodiode |
| Spectral Range | 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/aluminium enclosure |
| Dimensions | Ø 18 mm × 12 mm |
| Calibration | NIST / PTB traceable |
| Compatibility | SENSOR MONITOR 5.0 / VOLTCON / SGCD4 systems |
| Applications | UV Index monitoring, meteorology, environmental safety, research, IoT systems |
Key Features and Advantages
Accurate Erythema-Weighted Measurement
Spectral response perfectly follows the CIE erythema action curve, ensuring biologically relevant UV Index readings identical to global standards.
Integrated Amplification and Calibration
Features an internal transimpedance amplifier and comes factory-calibrated to NIST/PTB standards, guaranteeing precision and repeatability.
High Solar Blindness and Signal Purity
The SiC detector suppresses visible and IR light by > 10¹⁰, producing accurate UV-only data even in full sunlight.
Compact and Robust Construction
Encased in a TOCON hermetic housing, providing excellent protection against humidity, dust, and UV degradation for outdoor reliability.
Temperature-Compensated Stability
Built-in active compensation circuit ensures minimal drift under fluctuating environmental temperatures.
Plug-and-Play Simplicity
Provides a direct 0–5 V DC output, easily integrated into controllers, data loggers, or SENSOR MONITOR 5.0 systems.
Fast Response and Low Power
Response time below one second and power consumption under 10 mW make it ideal for portable or solar-powered applications.
The TOCON_E2 combines spectral precision, rugged design, and global calibration traceability, setting the standard for compact, professional UV Index monitoring systems.
Applications Across Industries
Meteorological and Climate Research
Used in weather and solar monitoring networks for real-time UV Index analysis and climate data correlation.
Public Health and Safety
Feeds UV Index data into public alert displays and mobile systems for sun-exposure awareness.
Smart-City and IoT Integration
Compact and low-power design allows installation in distributed UV sensor networks for continuous urban radiation mapping.
Environmental and Agricultural Studies
Monitors UV radiation effects on crops, ecosystems, and outdoor material degradation.
Educational and Research Institutions
Provides an accessible yet accurate platform for UV exposure experiments, photobiology, and atmospheric science.
Industrial and Outdoor Monitoring
Ensures safe UV exposure levels in manufacturing, construction, and transportation sectors.
The TOCON_E2 delivers reliable, calibrated UV Index data for scientific, environmental, and public-safety applications, combining precision with simplicity and durability.
Why Choose United Spectrum Instruments?
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Official distributor of SGLUX TOCON_E2 sensors in India
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Expertise in UV Index and solar radiation measurement systems
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Local calibration traceable to NIST/PTB standards
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Competitive pricing for OEMs, research organisations, and public projects
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Nationwide technical support, system integration, and after-sales service
FAQs
What does the TOCON_E2 measure?
It measures erythemally weighted UV radiation and outputs a voltage proportional to UV Index (UVI).
Can it be used outdoors permanently?
Yes – its sealed TOCON housing and SiC sensor ensure weatherproof, long-term stability.
What is the output signal type?
A 0–5 V DC linear output directly proportional to the UV Index.
Is calibration required?
No – each unit is factory-calibrated and traceable to NIST/PTB standards.
How does United Spectrum support Indian customers?
By providing integration guidance, calibration service, and nationwide technical assistance for SGLUX UV measurement systems.
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FAQs
What does the TOCON_E2 measure?
It measures erythemally weighted UV radiation and outputs a voltage proportional to UV Index (UVI).
Can it be used outdoors permanently?
Yes – its sealed TOCON housing and SiC sensor ensure weatherproof, long-term stability.
What is the output signal type?
A 0–5 V DC linear output directly proportional to the UV Index.
Is calibration required?
No – each unit is factory-calibrated and traceable to NIST/PTB standards.
How does United Spectrum support Indian customers?
By providing integration guidance, calibration service, and nationwide technical assistance for SGLUX UV measurement systems.
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