Mains monitoring
Always in control – instantly detect voltage, phases, and faults
Reliable network monitoring protects your systems from voltage fluctuations, phase failure, and other network problems. Whether voltage relays, phase monitors, or residual current monitoring – our devices provide early warning signals and ensure that critical situations are quickly detected and rectified. Ideal for industrial applications, mechanical engineering, or larger facilities where constant power quality is essential.

- Comprehensive advice & support
- over 10,000 articles in the shop
- Shipping in 24 hours
- thousands of satisfied customers

KATHRIN BRANDT
Employee Purchasing from TroisdorfGreat advice and friendly service. I was helped immediately and competently with any questions. Gladly again.

OMAR NASER
Office Manager from Frankfurt a.M.Goods are well packaged and arrive safely, which is important to me. My mail was answered immediately.

RAINER SEIDEL
Master carpenter from WiesbadenHad to replace a lamp, but the same was no longer available. Great advice, found a suitable replacement and delivered it quickly.