‘See In The Dark’ With Seek Thermal XR Camera

It’s pitch black along a river. My phone screen flutters then bursts red, shapes emerging from the dark. thermalimage

I’m testing a tiny thermal-imaging camera on a night hike. Campers huddle around a fire a few hundred feet ahead. On my screen I can see them through the night.

The Seek Thermal XR is smaller than my thumb. But its tiny lens senses infrared radiation via a microbolometer so sensitive it can detect body heat a quarter-mile away.


A phone serves as the screen and you control the Thermal XR from an app. The $299 camera made by a Santa Barbara, Calif., company, is marketed to outdoorsman, law enforcement officers, boaters, and anyone else needing the “see heat.”

Night Vision

The company calls the device a “true thermal imaging camera,” not a gadget made to entertain. Until recently, the company touts, a similar camera would have cost thousands of dollars.

My test was a fun experiment. But this kind of camera can save lives, including in search-and-rescue situations, or be a fun diversion while outdoors at night. The applications seem wide ranging.

thermal camera
Screen grab from iPhone connected to Seek Thermal

At home, point the camera at a door and you can see where heat is escaping due to poor seals. If your pet is missing in the backyard, point the camera toward all dark corners to hopefully catch a glimpse.

Home and personal security are other applications. Scan a dark parking lot for signs of thermal life before walking from the office toward your car.

seek thermal camera
Campers huddle around a fire… camera lets you “see in the dark”

The Thermal XR uses an array with 32,000 thermal-sensing pixels to assess the temperature of objects as close as 8 inches to far ahead in the woods.

The app, for iPhone or Android phones, gives options for control. Modes offer live temp readings and data on thermally-scanned scenes. You can capture photos of glowing, thermal shapes.


It’s simple to use. I plugged the camera into my iPhone and was scanning a dark yard seconds later. Two bunnies, hidden under a bush, spiked as small glowing blobs by my garage.

For night-hike fun or serious business, the Thermal XR can be a solid tool. Try one out if you’ve ever desired to see in the dark.

–Read more about the Seek thermal camera at Thermal.com.

Stephen Regenold

Stephen Regenold is Founder of GearJunkie, which he launched as a nationally-syndicated newspaper column in 2002. As a journalist and writer, Regenold has covered the outdoors industry for two decades, including as a correspondent for the New York Times. A father of five, Regenold and his wife live in Minneapolis.