The SparkFun Grid-EYE Infrared Array Breakout board is an 8x8 thermopile array, meaning you have a square array of 64 pixels capable of independent temperature detection. It’s like having a thermal camera, just in a lower resolution.
The on-board AMG8833 Grid-EYE from Panasonic possesses an accuracy rate of ±2.5°C with a temperature range of 0°C to 80°C. Additionally, this IR "camera" board can detect human body heat at about 7 meters or less, and has a frame rate of 10 frames a second to one frame a second.
You can use this sensor to build an affordable IR thermal imaging camera with, for example, a WIO Terminal.
More information is available on the website of Sparkfun.