Optical Sensors & Detector – UV Photodetectors
UV Index Photodetector (Erythema) – TOCON_E2
TOCON_E2 – UV Index Photodetector for Erythema-Weighted UV Measurement and Environmental Monitoring Applications
The TOCON_E2 from SGLUX GmbH is a high-precision erythema-weighted UV photodetector designed for accurate UV Index measurement and biologically effective radiation monitoring.
It combines a solar-blind SiC photodiode with a built-in transimpedance amplifier and a spectral correction filter matching the CIE erythemal (sunburn) action curve, producing a 0–5 V DC output proportional to UV intensity.
Optimised for the 280–400 nm wavelength range, the TOCON_E2 accurately quantifies UV radiation responsible for skin erythema and UV Index assessment in compliance with WMO and ISO standards.
Each sensor is factory-calibrated and traceable to NIST / PTB standards, ensuring high reproducibility, stability, and long-term accuracy.
Compact, rugged, and maintenance-free, the TOCON_E2 is ideal for meteorological stations, UV monitoring networks, medical safety systes, and environmental laboratories.
Understanding UV Index Photodetector (Erythema) - TOCON_E2
The TOCON_E2 is a UV Index photodetector that precisely measures erythemally effective ultraviolet radiation between 280 nm and 400 nm.
It integrates a solar-blind SiC detector and an optical correction filter reproducing the human skin’s erythema sensitivity, enabling reliable UV Index and biological exposure calculations.
The internal low-noise amplifier delivers a 0–5 V analog output, easily integrated into logging systems or SGLUX SENSOR MONITOR 5.0.
Its traceable factory calibration guarantees global comparability of UV Index data, making it indispensable for weather services, research laboratories, and occupational-safety monitoring.
Technical Specifications
| Feature | Specification |
| Function |
Erythema-weighted UV photodetector for UV Index measurement
|
| Detector Type |
Solar-blind SiC photodiode with integrated amplifier
|
| Spectral Range | 280 – 400 nm |
| Spectral Weighting |
CIE Erythema (sunburn) action spectrum
|
| Output Signal |
0 – 5 V DC (linear with irradiance)
|
| Sensitivity |
Matched to UV Index scaling
|
| Accuracy | ±5 % of reading |
| Response Time | < 1 s |
| Operating Voltage | 5 – 24 V DC |
| Operating Temperature | −20 … +85 °C |
| Housing Material |
Anodised aluminium TOCON enclosure
|
| Optical Window |
UV-transmitting quartz filter (erythema-weighted)
|
| Connector |
BNC / M8 / custom cable output
|
| Calibration |
Factory-calibrated, traceable to NIST / PTB
|
| Compatibility |
SENSOR MONITOR 5.0 / VOLTCON / SGCD4 systems
|
| Applications |
UV Index monitoring, erythema radiation assessment, meteorology, health safety, environmental research
|
Key Features and Advantages
Erythema-Weighted Spectral Sensitivity (280–400 nm)
The TOCON_E2 reproduces the CIE erythemal action spectrum, ensuring accurate detection of biologically active UV radiation responsible for human skin response.
Accurate UV Index Calculation
Delivers direct, linear analog output corresponding to UV Index values, enabling real-time UV Index display or data logging.
Infrared and Visible Light Rejection
Its solar-blind SiC detector eliminates interference from visible and infrared light, ensuring reliable results even under full sunlight.
Integrated Low-Noise Amplifier
The internal transimpedance amplifier provides a clean 0–5 V signal, simplifying connection to monitoring electronics.
Traceable Factory Calibration
Each sensor is NIST / PTB-calibrated, ensuring comparability and global conformity with meteorological standards.
Fast Response and Long-Term Stability
Responds within one second and maintains stability during long outdoor exposures.
Compact, Weatherproof Design
Encased in a rugged anodised aluminium housing, suitable for permanent installation in environmental stations.
The TOCON_E2 offers unparalleled accuracy for UV Index and erythema-weighted UV monitoring, making it essential for weather agencies, research institutions, and UV-safety system integrators.
Applications Across Industries
Meteorology and Environmental Monitoring
Used in weather stations and air-quality networks for accurate UV Index data collection.
Public Health and UV-Safety Systems
Monitors erythemal UV levels for human-exposure control and UV-protection guidance systems.
Solar Radiation and Climate Research
Provides traceable UV Index data for long-term radiation studies and atmospheric-ozone analysis.
Medical and Dermatological Applications
Used in skin-care research, phototherapy calibration, and UV-exposure management systems.
Occupational Safety and Industrial Use
Ensures compliance with UV-exposure limits in laboratories, printing, and disinfection environments.
Smart-City and IoT Networks
Integrates with wireless UV Index nodes for distributed environmental data collection.
The TOCON_E2 combines scientific-grade calibration, real-time response, and robust outdoor design, ensuring dependable UV Index and erythema-weighted radiation measurement in diverse fields.
Why Choose United Spectrum Instruments?
-
Authorised distributor of SGLUX TOCON_E1 in India
-
Specialised expertise in erythema-weighted and UV Index measurement technologies
-
Local calibration and certification traceable to NIST / PTB standards
-
OEM integration and engineering support for environmental and safety instrumentation
-
Nationwide technical service with on-site calibration and application training
United Spectrum Instruments ensures precise, traceable, and reliable UV measurement performance for OEMs, research institutes, and environmental monitoring authorities across India.
FAQs
What does the TOCON_E2 measure?
It measures erythemally effective UV radiation corresponding to the CIE erythema action spectrum.
Can it be used for UV Index monitoring?
Yes – it’s calibrated for direct UV Index output suitable for meteorological and safety systems.
Is it sensitive to visible or IR light?
No – it uses a solar-blind SiC detector that rejects non-UV radiation.
Is the sensor factory-calibrated?
Yes, every sensor is factory-calibrated and traceable to NIST / PTB standards.
What support does United Spectrum provide in India?
Local integration, calibration, and technical assistance for OEM, research, and industrial users nationwide.
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FAQs
What does the TOCON_E2 measure?
It measures erythemally effective UV radiation corresponding to the CIE erythema action spectrum.
Can it be used for UV Index monitoring?
Yes – it’s calibrated for direct UV Index output suitable for meteorological and safety systems.
Is it sensitive to visible or IR light?
No – it uses a solar-blind SiC detector that rejects non-UV radiation.
Is the sensor factory-calibrated?
Yes, every sensor is factory-calibrated and traceable to NIST / PTB standards.
What support does United Spectrum provide in India?
Local integration, calibration, and technical assistance for OEM, research, and industrial users nationwide.
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