Schirtec AG SLSC-20 Lightning Strike Digital Counter is an instrument used to detect and count lightning strikes. It is a highly accurate and reliable tool that can detect currents from 1 kA to 100 kA. This can be easily tested using a 9V battery. SLSC-20 has a six-digit digital counter that displays the number of lightning strikes detected. It is the ideal device for a wide range of applications such as aerospace, transportation and telecommunication industries.