# Adafruit ALS-PT19 Analog Light Sensor Breakout

**Type:** Product page · **SKU:** ADA2748 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/adafruit-als-pt19-analog-light-sensor-breakout.html ([markdown](https://core-electronics.com.au/adafruit-als-pt19-analog-light-sensor-breakout.html.md))

Add a teeny analog light sensor, the ALS PT19 analog light sensor is a great way to upgrade a project that uses a photocell and needs RoHS compliance. Due to the...

## Pricing

- **Price:** $5.05 (inc GST) — $4.59 AUD, exc GST
- **Quantity discounts:** 10+ $4.45 (exc GST) · 50+ $4.36 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 8 today, and up to 500 more in 8–12 days.

## Description

Add a teeny analog light sensor, the **ALS PT19** analog light sensor is a great way to upgrade a project that uses a photocell and needs RoHS compliance. Due to the high rejection ratio of infrared radiation, the spectral response of the ambient light sensor is close to that of human eyes.

It's a pretty simple sensor - connect - to ground, + to 2.5V-5.5V or so to power it. Now measure the analog voltage on the OUT pin. That's it! The voltage will increase when the sensor detects more light.

## Technical Details

- [Datasheet](https://core-electronics.com.au/attachments/localcontent/2748datasheet_25474d596cd.pdf)
- [EagleCAD PCB Files on GitHub](https://github.com/adafruit/Adafruit-ALS-PT19-Sensor-Breakout-PCB)
- [Fritzing object in the Adafruit Fritzing Library](https://github.com/adafruit/Fritzing-Library)
- 7.8mm x 10.6mm x 2.4mm / 0.3" x 0.4" x 0.09"
- Weight: 0.2g

 ![](https://core-electronics.com.au/attachments/localcontent/rohs_icon_8216055e11.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/2/7/2748-00.jpg)