If you point a thermal camera at a wall it will detect heat from the wall not what s behind it.
Best thermal camera to see through walls.
Glass has its own heat signature just like any other object.
The common misconception is that thermal camera can see heat and nothing else therefore if there is a heat source behind a wall or solid object it should pick up the heat.
Though thermal imaging previously required special gear costing thousands of dollars the seek thermal camera sells for from about 199 to 250 and is available.
If you want to measure a scene through glass a thermal camera is not going to be much help.
While the device cannot see through walls glass or other solid objects it can detect heat that has radiated toward the surface of those objects.
Additionally thermal cameras do not perform well around water including in rain or fog.
No thermal cameras cannot see through walls at least not like in the movies.
Can thermal cameras see through walls.
Using different infrared wavelengths the imager measures the thermal signature of a particular area ranging from anything as small as an electric box to an object as large as an entire building frame.
Imagine plugging a pocket sized camera device into your smart phone and then being able to see leaky pipes or ductwork inside walls.
Walls are generally thick enough and insulated enough to block any infrared radiation from the other side.
No thermal camera can see through a wall or any solid object.