DFRobot
Gravity:Analog UV Sensor V2
The Gravity Analog UV Sensor V2 uses a GUVA-S12SD photodiode to detect ultraviolet radiation in the 200–370 nm (UV-A) wavelength range. It outputs a linear a...
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The Gravity Analog UV Sensor V2 uses a GUVA-S12SD photodiode to detect ultraviolet radiation in the 200–370 nm (UV-A) wavelength range. It outputs a linear analogue voltage signal proportional to UV intensity, making it easy to read UV index values directly with an Arduino or other microcontroller.
Part of DFRobot's Gravity series, the sensor connects via a standard 3-pin analogue cable for plug-and-play integration. Its compact size and fast response make it suitable for both indoor and outdoor UV monitoring applications.
Key Features
- GUVA-S12SD Photodiode – Detects UV-A radiation in the 200–370 nm range
- Linear Analogue Output – Voltage output proportional to UV intensity
- Fast Response – Quick measurement for real-time UV monitoring
- Gravity Interface – 3-pin analogue connector for plug-and-play use
- Compact Size – Easy to install in projects and enclosures
Ideal For
- UV index monitoring stations
- UV-A lamp intensity measurement
- Plant growing environment monitoring
- Weather station and environmental sensing projects
Package Contents
- 1× UV Sensor
- 1× Analogue Cable
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- photodiode
- A photodiode is a light-sensitive component that produces a small electrical signal, a current or voltage, when light falls on it. When a sensor uses several photodiodes, each can be tuned to a different part of the spectrum so the chip can measure several wavelength bands separately.
- Torque
- A twisting force that causes something to rotate, usually measured in newton-metres or kilogram-centimetres. It matters when choosing motors, servos, gears, and tools because higher torque is needed to lift heavier loads, turn larger wheels, or move mechanisms without stalling.
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