Obviously mounted up high in a readily visible spot "trail cams" work just as well (as a possible visual deterrent), very cheap online. 

You can also drive by the property and perform a visual inspection before the auction date.Look for REO homesIf a home doesn’t sell to a third-party at auction, it becomes a real estate-owned (REO) home.

I like the visual it gives me on a map.

If so, I'd start bringing a tape with me to look at houses if the problem is you can not visualize 30 sq ft of granite.

In addition to that he explained, and the best part for me as I am a bit of a visual learner, he showed how most people's rehab estimates are way off.

Please everyone .. do NOT do thisLet me visualize what you are telling others to do.So logically, this doesn't make sense.

Without visually inspecting the sold comps via photos, you can segregate the renovated from distressed by chunking the $/sf of the resulting comps by quantile groupings.

A graph of growth or profitability gives a visual that some people may find easier to understand.

During the Phase I investigation, the environmental professionals will conduct a visual inspection of the site and research records from various public sources to identify any present or potential environmental contamination based on the history of the site and neighboring sites.

These visual records are essential for later analysis and comparison.