so that you can find easily the cold spots ...

This small device meets all my expectations for myself. I moved 2 years ago, in a house which is low power indeed, but I have always felt that there are certain parts of the wall were not isolated clever. With this device, I could finally through test and also objectionable because it really is serious temperature fluctuations at some point, We'll see what the contractor says but that's another story ...

The unit is supplied incl. A 9V battery. While the battery is in an unusual way on but that works just fine. The front part of the handle where the measuring button is can be folded forward out. Interior then located the battery and the terminal.

The device can be activated by pressing the button on the bracket and is about to start the point where the laser is pointing to measure. The instructions say that you should then turn off the laser to the measurement carried out as the laser itself indeed a emits heat. I personally found the difference now is not serious. if the wall has 22.5 or 22.2 degrees is me in my case, yes rather matter. On the device on the side is a small table printed indicating how great the measured area is depending on the distance to the measurement point which I find very pleasant because it has the same at a glance and do not have to look in the manual. In general, the measured area at about 1 meter distance 8cm diameter and 23cm in diameter of 2 cm.

The measurement result is there very quickly. A first result is there immediately, for a more accurate result you have to wait about 3sec what is a perfectly acceptable time for me.

On the device there are 3 more buttons. The first is to switch between Fahrenheit and Celsius, the second on the Blue backlight on and off and the third button activates and deactivates the laser which is to seek the place used.

The workmanship is good and also holds a fall of 1.5 meters with no damage from (I inadvertently also tested ...) although there certainly makes the angle of impact and the underground a difference ...