Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | Risym |
| Model Number | S12SD |
| Sensor Type | UV Intensity Detection |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Analog Voltage |
| Detection Range | 200nm - 370nm |
| Response Time | < 1 Second |
| Interface | 3-Pin Header |
| PCB Dimensions | 24mm x 18mm |
| Application | Arduino, Raspberry Pi, DIY Electronics |
Anonymous
Mar 30, 2026
Rating: 4/5
Great for classroom demos
Bought three of these for our physics unit on light spectrum. Students loved seeing real-time data. One unit had a slightly loose pin, but easy to solder back on.
Anonymous
Mar 29, 2026
Rating: 5/5
Excellent value for money
Compared to other UV sensors on the market, this offers the best price-to-performance ratio. High sensitivity makes it great for precise measurements.
Anonymous
Mar 26, 2026
Rating: 5/5
Easy to use for beginners
I was worried about wiring this up, but the pins are clearly labeled. Plenty of tutorials online helped me get it running in under an hour. Highly recommend!
Anonymous
Mar 21, 2026
Rating: 5/5
Perfect for my weather station project
This UV sensor module works exactly as described. The analog output is stable and correlates well with local weather reports. Easy to connect to my Arduino Uno.
Anonymous
Mar 06, 2026
Rating: 5/5
Compact and reliable
Used this on a mobile robot to detect outdoor conditions. The small form factor fits perfectly on the chassis, and the readings are consistent even in varying light.
Anonymous
Mar 01, 2026
Rating: 4/5
Good sensitivity, needs calibration
Great little sensor for monitoring sunlight exposure for my plants. It took a bit of code tweaking to get the readings in a useful range, but overall very satisfied.
Q: Do you provide sample code for Raspberry Pi?
A: Since the Raspberry Pi lacks native analog inputs, you will need an external ADC (like the MCP3008). We provide example Python scripts for this setup on our GitHub repository linked in the product manual.
Q: Can this sensor detect UVC light from germicidal lamps?
A: The sensor has a detection range of approximately 200nm to 370nm, which covers UVA, UVB, and part of UVC. However, for safety reasons, we recommend testing cautiously when exposing electronics to high-intensity UVC sources.
Q: What is the maximum distance for accurate sunlight detection?
A: As a proximity sensor for ambient light, it is designed to measure the UV intensity of the environment it is placed in, rather than detecting sources from a distance. Direct exposure to sunlight yields the best results.
Q: Does this module work directly with 5V Arduino boards?
A: Yes, the S12SD module operates comfortably within the 3.3V to 5V range, making it fully compatible with standard 5V Arduino boards like the Uno and Mega.
Q: Is there a digital output option or only analog?
A: This specific S12SD model provides an analog voltage output proportional to UV intensity. If you require a digital signal, you will need to read the analog pin and process it via your microcontroller's ADC.
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