OK this has some really cool features.
My husband is an HVAC tech so this is actually a product that I am familiar with using. It had the battery included I love that little fact since so many things don't and sometimes they don't actually say so when you buy online so that was a great little extra! Anyway the temperature gun is very easy to use. Its easy to identify hot and cold spots and of course the temperature of any given thing but what I like about this one is you can turn the back light and the laser off and on.