It does auto detect the document and then resize to what you want which is nice. 

Their website says that infrared scanning is "using the most technologically advanced tools available allows us to detect moisture that is invisible to the human eye, and with these we are also able to locate areas throughout a home or structure that have overheating or malfunctioning electrical components. this work brings a critical difference to a home inspection". 

I have an accepted offer on a duplex and i will be getting the home inspected this week. is Infrared scan recommended for hot/cold spot detection?

If you run through a pre-screen by phone, you will get better at detecting when people aren't being completely honest and can either dig deeper or politely end the call and refer them to your "future" open house. 

I have sold some of the liens and I have done a boatload of detective work and found some of the relatives.

I'm thinking of installing a leak-detection system in my multi-family rentals.

The main living area sliding glass door has an open/close sensor that allows me to automate turning the Mode to OFF when it is detected as open and then setting it back to AUTO when the sensor is closed.

Then use you detective skills ad go to work. 

Though they are easy to detect it is not possible for anyone to know exactly where they are pointing because of its dome shape.

Go to the police department and file the report, if they will take it, they might not and I assume no detective is going to knock on their door.Do not speak to them or tell them you are making a police report.