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Can this detect heat through obstacles such as an intruder behind your bedroom door, or behind a wall in your house? — 1 Answer

by Johnny, from CA, United States Asked on November 28, 2019

Name FLIR Systems Thermosight Pro PTS233 1.5-6x19mm Thermal Imaging Weapon Sight (3.4)
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Answered by Armando R., Gear Expert, from IL, United States, on January 17, 2020

No, it cannot. It requires a clear line of sight to the target and cannot detect heat through glass or solid objects. The only way it would detect heat through a solid object is if the "target" is putting off enough heat that its changing the temperature of the solid object as well.

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Last updated 2025-11-12 UTC.