LISNs have been designed and developed for line-bound interference measurement, according to CISPR 16-1-2. The utilization of Air coils in the current path avoids saturation effects. The continuous high current load bearing capacity of the coils is ensured by their large wire cross section. All our LISNs include Artificial Hand, PE simulation Network, built-in pulse limiter and 10dB attenuator and can also be used in DC applications. Single & Three phase models include switching operation measurement (power meter) according to CISPR 14-1.