World's smallest thermal camera is the size of the tip of your thumb!

Fingers removing the magnetic cover from the InfiRay P2 Pro worlds smallest thermal camera
(Image credit: Infiray)

Weighing just  9g and measuring 27 x 18 x 9.8mm, Infiray's P2 Pro lays claim to being the smallest thermal camera in the world. It achieves this, like some others, by connecting to a phone for its display and operation but even then it is considerably smaller than alternatives,  from Flir and others. It is also, InfiRay (or IRay) says, the first with an 8μm thermal sensor.

Thermal imaging is growing in popularity (and coming down in price). They're popular DIY tools and essential for electricians and HVAC engineers, so it's worth finding the best thermal camera for your needs.

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Adam Juniper
Managing Editor

With over 20 years of expertise as a tech journalist, Adam brings a wealth of knowledge across a vast number of product categories, including timelapse cameras, home security cameras, NVR cameras, photography books, webcams, 3D printers and 3D scanners, borescopes, radar detectors… and, above all, drones. 

Adam is our resident expert on all aspects of camera drones and drone photography, from buying guides on the best choices for aerial photographers of all ability levels to the latest rules and regulations on piloting drones. 

He is the author of a number of books including The Complete Guide to Drones, The Smart Smart Home Handbook, 101 Tips for DSLR Video and The Drone Pilot's Handbook