Depends strongly on the type of battery , material and applications. (Minimun approximately 300-400 holes on hard wood , 150-200 holes in metal , and 200-300 screws on hard wood)
Exact specification of the number of meters is not possible. (Many different influencing variables - Material properties, machine, power, disc selection, disc diameter, cutting depth, handling, user and many others.
Yes, a dry disc can also be used for wet applications. (Dry disc can withstand high temperatures - Hardly any heat is created during wet applications )
No, a wet disc should never be used for dry applications. (Wet disc is not designed for high temperatures - A lot of heat is created during dry applications)
Maintain machine speed ( High speed means high material removal rate . Control by means of feed pressure , dependent on machine performance , material type , material thickness)
This is the accuracy, which can be realized on a distance of 10m under typical, meaning favorable, conditions (reflective target, no adverse light conditions, normal temperature & humidity)
Static electricity can lead to inaccurate indication of electric lines. To improve the indication , place your free hand flat on the wall next to the measuring tool in order to remove the static electricity.
It is possible that the wall shields the 50/60 Hz signal, if the cable is lying directly under the screed . It may also happen that the cable lies deeper than the detector maximum range.