In considering temp guns to monitor all my herp enclosures, I have a few questions: iIs it safe to assume that temp guns only take surface temperature? or can they measure air temp as well (like a digital that is stationed somewhere in the cage?) Surface temps are not always an accurate way to measure ambient temperature. (or anything temperature. A humans body temp is 98.6 degrees Fahrenheit, but their surface temp is certainly not 98.6) Is there any proven and reliable way to take an ambient air temp with a temp gun?