Thermal cameras to spot geckos inside a reptile room?

[thorrshamri]

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The question might seem stupid or it actually is.

I was wondering if everyone has ever tried a thermal camera (not an infrared one!) to spot escaped and free-range geckos at night. After all, geckos bodies are not EXACTLY at the same temp than their surroundings.
What sensibilitity in terms of °F or °C is needed for that purpose?

Thanks,

Hervé

[Aimless]

that's a great question. is there any literature on variation in body temp? I'd guess it's fairly stable in a captive collection.

[thorrshamri]

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Out of pure logic (at least mine) a live gecko with an active metabolism and movement is slightly warmer than its surroundings. Yet, I would like accounts on any experience in darkness with a thermal camera to spot escaped/free-range geckos or geckos in the wild.