The device is about the size of a pair of binoculars and is armoured and waterproof making it almost Coastguard proof. It even has a red button to take photos.
The device has number of display options which allow the user to toggle between Red and Blue or Black and White. Each display shows different heat ranges and in some circumstances one setting is better than the other. I don't know why but there's probably a technical explanation, I just know it works.
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| Red/Blue Display |
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| Black/White Display |
The device is so sensitive it can pick up heat from a person who was leaning against wall minutes before hand. I can honestly say we could see the wires and pipes in the wall and heat from mobile phones. Even footprints! A really great tool, although rather expensive.
I used it last week to look for a cat. It may sound silly but the owner was concerned that her cat had got locked in one of a row of garages. The device is sensitive enough to pick up the heat signature of even a cat standing behind a garage door, so I thought it was worth a try.
Last week to test it in a proper search situation Austen went to hide in some bushes (not something he does too regularly) ; it took about a minute for the team to find him.
It was easy-peasy as he is a big heat source.
2 comments:
I remember when I was an apprentice at an electronics factory that made cameras like this. They gave us a demostration of one by getting someone to hold a Yellow Pages (other telephone directories are available, as you would say) pressed between the palms of their hands. Once it had been held like that for a couple of minutes the instructor took it and flicked through the book and through the camera you could see a perfect impression of the hand on each page.
You're absolutely right Barry. It's amazing how you can see where someone has been sitting or standing after they've left the room.
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