GUVA-S12SD UV Light Sensor Module — Analog Output, Arduino

GUVA-S12SD UV Light Sensor Module — Analog Output, Arduino

The GUVA-S12SD UV sensor module measures ultraviolet (UV) light intensity in the 240–370nm wavelength range and outputs an analog voltage proportional to UV intensity. Convert the analog output to a UV index (0–11+) using a simple formula in Arduino. Ideal for weather stations, UV exposure monitoring, and sunscreen effectiveness testing.

Key Specifications

• Sensor: GUVA-S12SD | Wavelength: 240–370nm (UV-A + UV-B)
• Output: Analog voltage (0–1V proportional to UV intensity)
• Supply voltage: 3.3–5V | Current: 0.1mA
• UV index range: 0–11+ (calculated from output voltage)
• Compliance: RoHS compliant

Why Choose This?

• ✅ 240–370nm range — covers both UV-A and UV-B bands
• ✅ Analog output — direct connection to Arduino analog input
• ✅ UV index calculation — simple formula converts voltage to UV index
• ✅ 3.3V/5V compatible — works with Arduino Uno, ESP32 and Raspberry Pi

Typical Applications

• Arduino weather station UV index measurement
• UV exposure monitoring and sunburn warning
• Sunscreen effectiveness testing
• UV sterilization monitoring

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