I got this because I was pretty sure the insulation in the walls of our house was either missing or just not working properly and I wanted to see if there were any cold spots on the outside walls . .Well, I was wrong. The internal temperature of the outer walls is damn close to the temperature of the inner walls. This saved me the trouble of cutting through the drywall to look around. I also checked with a laser how much cold air is being let in from an in-wall air conditioner (a definite source of heat loss) and around door and window frames. I'll get some insulation for them, go around and try to patch up some places where the heat is escaping. The block is easy to use and intuitive. You can also control the air temperature by turning off the infrared part. And as I said, please do not use it on people! Right after I got this I saw a video of some of the recipes I want to make that require the ingredients to be kept at a very constant temperature and the guy used one of those things. Follow him. Fabulous! I think I will be using this for many projects in the future! If I have any problems with this I will come back and update. Have fun shopping!
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