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We offer a complete line of monitoring devices with a variety of innovative functionalities that can be perfectly matched to your requirements, ensuring that impending faults will be detected as early as possible and before the security of supply is compromised. Discover supply security at an entirely new level in our portfolio.

Overview of our monitoring devices
Monitors assist in the early detection of relevant arrester changes and support the security of supply. Siemens offers a range of control spark gaps and analog counters as well as digital and portable monitoring devices.
The LCM 500 is a portable measuring system for metal-oxide surge arresters that measures the 3rd harmonic component of the leakage current without interrupting operation.

The data obtained on the calculated resistive leakage current can provide valuable information on the condition of the arrester.