Reliable sensor for indirect DC current measurement in the range of up to 0-35 A allows safe monitoring of electrical circuits without intervening in the conductor (the coil is not openable). With an isolation voltage of 4000 V, it provides a high level of protection and stability even in demanding applications. Support for LK3 and LK4 controllers and flexible power supply of 3.3 V or 5 V facilitate integration into various systems.