> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Gravity: UV Index Sensor (240-370 nm, UVA, UVB, UVC)

**Type:** Product page · **SKU:** SEN0636 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-uv-index-sensor-arduino-uva-uvb-uvc.html ([markdown](https://core-electronics.com.au/gravity-uv-index-sensor-arduino-uva-uvb-uvc.html.md))

The Arduino Ultraviolet Radiation Index Meter (240-370 nm) with direct UV index and harm level output supports UART & I2C, ideal for UV monitoring...

## Pricing

- **Price:** $15.45 (inc GST) — $14.05 AUD, exc GST
- **Quantity discounts:** 6+ $13.35 (exc GST) · 12+ $12.78 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 160 more in 8–12 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0636:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SEN0636:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The Gravity: UV Index Sensor is a highly sensitive device designed to measure ultraviolet (UV) radiation in the wavelength range of **240-370 nm, which includes UVA, UVB, and UVC wavelengths.** The sensor primarily focuses on the UVB range, making it ideal for applications such as skin health assessment and UV index monitoring. This device directly outputs the UV index from 0 to 11 and provides a harm risk warning from 1 to 5, eliminating the need for additional calculations. It is versatile, supporting both I2C and UART communication methods, ensuring compatibility with a wide range of master control systems.

**Direct UV Index and Harm Level Output**

The UV Index 240-370 Sensor provides real-time UV index values ranging from 0 to 11 and harm levels from 1 to 5, offering immediate data without the need for conversion. This direct output simplifies the process for users, making it particularly useful for real-time monitoring of UV radiation and assessing the risk of skin damage.

**Wide UV Wavelength Range**The sensor measures UV radiation across the 240-370 nm range, covering the UVA, UVB, and UVC segments. With a focus on the UVB range, it can be effectively used for applications like skin health monitoring and environmental UV radiation assessments.

**Dual Communication Modes (I2C & UART)**

With support for both I2C and UART communication protocols, the sensor can be easily integrated with a variety of systems and devices. This flexibility makes it suitable for diverse applications, from environmental monitoring to photovoltaic system optimization.

![Wiring Diagram of Arduino UNO and Gravity:UV Index 240370 Sensor](https://core-electronics.com.au/attachments/localcontent/WIRINGDIAGRAM_0x0_57708ddfa06.webp)

Figure: Wiring Diagram of Arduino UNO and Gravity:UV Index 240370 Sensor

### Specification

11. Operating Voltage: 3.3-5V DC
12. Communication Methods: I2C, UART
13. I2C Address: 0x23
14. UV Wavelength Range: 240-370nm
15. Operating Temperature: -30~80°C
16. Dimensions: 30mm×22mm
### Documents

18. [Product wiki](https://wiki.dfrobot.com/SKU_SEN0636_Gravity_UV_Index_240370_Sensor)
19. [2D CAD](https://core-electronics.com.au/attachments/localcontent/035d8b410d0a862872b64328a60b89a2_7293565bafc.rar)
20. [2D DXF](https://core-electronics.com.au/attachments/localcontent/779e10b7f23a5d83713026a2f9fa15ed_201051e9dd5.rar)
21. [3D STP](https://core-electronics.com.au/attachments/localcontent/5948b521104648ccc675d2393c36a3be_374712a48c0.zip)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN0636-1.jpg)