Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage	3.3V - 5V DC
Output Signal	Analog Voltage Output
Detection Range	200nm - 370nm (UVA/UVB)
Sensitivity	High Sensitivity with Low Noise
Response Time	< 1 Second
Interface Type	3-Pin Header (VCC, GND, OUT)
PCB Dimensions	32mm x 14mm
Mounting Hole Size	3mm Diameter
Operating Temperature	-20°C to +85°C
Compatibility	Arduino, Raspberry Pi, ESP32, STM32

6 reviews

Anonymous

Mar 31, 2026

Rating: 4/5

Good sensitivity, needs calibration

The sensor detects changes in sunlight intensity very quickly. I had to do some manual calibration in the code to get exact readings, but once set up, it performs reliably for my greenhouse monitoring system.

Anonymous

Mar 17, 2026

Rating: 4/5

Reliable for solar tracking

Using four of these to build a dual-axis solar tracker. They respond consistently to light variations. One unit had a slightly noisy output, but swapping the capacitor fixed it immediately.

Anonymous

Mar 12, 2026

Rating: 5/5

Perfect for weather station projects

This UV sensor module works flawlessly with my Arduino-based weather station. The analog output is stable and correlates well with local UV index reports. Very easy to integrate.

Anonymous

Mar 12, 2026

Rating: 5/5

Bulk purchase success

Ordered ten units for our community makerspace workshop. All modules arrived in perfect condition and performed identically during testing. Great value for educational kits.

Anonymous

Mar 04, 2026

Rating: 5/5

Compact and robust

Small form factor makes it easy to fit into tight spaces on my robot chassis. It has survived outdoor testing sessions without any issues. Highly recommended for mobile robotics.

Anonymous

Mar 01, 2026

Rating: 5/5

Great for learning embedded systems

Bought this for a university project on environmental sensing. The documentation was clear enough to get started quickly, and the signal quality is excellent for the price point.

5 FAQ

Q: Does this module output digital or analog signals?

A: The S12SD module provides an analog voltage output proportional to the detected UV intensity. You will need an ADC (Analog-to-Digital Converter) pin on your microcontroller to read the data.

Q: What is the power consumption of this sensor?

A: The typical operating current is less than 10mA at 5V, making it suitable for battery-powered applications when combined with sleep modes on the host microcontroller.

Q: Do you provide sample code for Raspberry Pi?

A: Yes, since the output is analog, you will need an external ADC chip like the MCP3008 for Raspberry Pi. Our GitHub repository includes a Python script demonstrating how to connect and read data using that setup.

Q: Can this sensor distinguish between UVA and UVB rays separately?

A: No, this specific module measures the total intensity across the UV spectrum (approx. 200nm-370nm). It does not provide separate readings for UVA and UVB bands.

Q: Is waterproof casing included with the sensor?

A: The module itself is not waterproof and should be protected from direct rain or moisture. We recommend using a separate IP-rated enclosure if deploying it outdoors.

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