ALS-PT19 Analog Light Sensor Breakout


Availability: Temporarily Out Of Stock

Out of Stock - Available on Backorder

SKU: SEN-090 Manufacturer: Adafruit Industries Mfg Part Number: 2748 Category: Tags: , , , ,


The ALS-PT19 analog light sensor is a great way to upgrade a project that uses a photocell and needs RoHS compliance. Unlike the standard CDS photocells, these do carry a ROHS certification. We find these sensors also do a better job measuring the light level in the human vision range due to the high rejection ratio of infrared radiation found with this sensor.

It's a pretty simple sensor; just give it 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.


  • Input Voltage: 2.5 – 5.5VDC
  • Analog Output


  Difficulty Level

Soldering Skill: Beginner
Prototyping Skill: Beginner
Programming Skill: Beginner

  Product Certifications

  Product Attributes

Weight: 2 g

  Warranty Policy

This product has a 30 Day Warranty from the date of delivery. The item must not be modified, abused, incorrectly hooked up, or used for purposes outside the original scope of design.

  Return Policy

This product is returnable Within 14 Days of delivery. Item must be unopened, unused, and in re-saleable condition.

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