GUVA-S12SD UV Sensor Module – Analog UV-A/UV-B Detection
GUVA-S12SD UV Detection Sensor Module – Analog UV-A and UV-B Measurement
The GUVA-S12SD is an analog UV sensor module designed to measure ultraviolet radiation across the UV-A and UV-B spectrum. It outputs a voltage proportional to the intensity of UV light, making it suitable for applications like UV index monitoring, wearable UV exposure trackers, and automated shading systems. With a simple analog interface, it integrates easily with microcontrollers such as Arduino and ESP8266.
Key Specifications
| Specification | Value |
|---|---|
| Sensor Type | GUVA-S12SD photodiode |
| Operating Voltage | 3.0V to 5.5V DC |
| Output Type | Analog voltage (0-1V typical) |
| Spectral Range | 240nm to 370nm (UV-A, UV-B) |
| Response Time | <1ms |
| Module Dimensions | 18.5mm x 15mm (approx.) |
What You Can Build With This
- UV index monitoring station for weather tracking
- Wearable UV exposure reminder bracelet
- Automatic sunshade or curtain controller
- Plant light optimizer using UV feedback
Compatibility
The GUVA-S12SD module works with any microcontroller that supports analog input, such as Arduino Uno, Nano, ESP32, and Raspberry Pi Pico. It draws minimal current, so it can be powered directly from the board’s 3.3V or 5V pin. Common pairings include LCD displays for UV index readout or SD card loggers for long-term data collection.
Wiring Notes
Connect VCC to 3.3V or 5V, GND to ground, and OUT to an analog input pin (e.g., A0 on Arduino). The output voltage ranges from 0V to around 1V, so you may need a voltage divider or ADC with adequate resolution. No pull-up resistor is required; the signal is directly proportional to UV intensity.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, the GUVA-S12SD sensor module connects directly to any Arduino board's analog input. Use a simple analogRead() to get UV intensity values.
Can this module measure UV-C radiation?
The sensor's spectral range is 240nm to 370nm, which covers UV-C, but its peak sensitivity lies in UV-A/UV-B. For precise UV-C detection, a dedicated sensor is recommended.
How do I convert the analog voltage to UV index?
The output voltage is roughly linear with UV intensity. You can calibrate it using a known UV index source and then map the voltage accordingly in your code.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
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Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items