Lepton™ 3.5 + PT2 + Lepton™ Windows® User App

The FLIR Lepton®

The FLIR Lepton® is a radiometric-capable LWIR camera solution that is smaller than a dime, fits inside a smartphone, and is one tenth the cost of traditional IR cameras. Using focal plane arrays of either 160x120 or 80x60 active pixels, Lepton easily integrates into native mobile-devices and other electronics as an IR sensor or thermal imager. The radiometric Lepton captures accurate, calibrated, and noncontact temperature data in every pixel of each image.


Radiometry, unbeatable SWaP for mobile devices, and greater sensitivity than common thermopile arrays


Uncooled thermal imaging for mobile devices, unattended sensors, and small electronics designs


Simplifies development and manufacturing of thermal-enabled devices

Start creating with FLIR Lepton®

FLIR Lepton® is a revolutionary longwave infrared (LWIR) imager that is ten times less expensive than traditional thermal cameras, making it the perfect core for your prototype. It’s available in three models: 50° FOV w/o shutter, 25° FOV w/o shutter, and 50° FOV with a shutter for manual calibration.

Here in the Lepton Maker Community, you can get started using Lepton in your project, and collaborate with other digital makers to get help or share ideas.

Welcome to the Lepton Maker Community

Get started

Check out the quick start guides

We have quick start guides for popular platforms like Raspberry Pi and Beaglebone black, as well as source code and examples to help you hit the ground running with your Lepton.


Lepton 3.5 with Radiometry

Announcing the new Lepton 3.5...

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Sign up for a Lepton Maker community account— it only takes a few minutes.

Get access to the SDK, documentation, and a community of makers willing to help and collaborate with you.

Join the community now