Our systems achieve the highest accuracy and are suitable for testing all types of meters.
Our solutions for testing AC and DC charging stations are compact and easy to use.
We offer stationary and mobile solutions for testing instrument transformers and switches, optimized for your needs.
Whether calibrations, software upgrades or training – we offer a wide range of services remotely and on-site.
ZERA – Your specialist for measurement technology
ZERA develops and manufactures systems for the generation, measurement, testing, and calibration of electrical quantities and distributes them worldwide. Our customers include renowned companies in the electrical supply and instrument transformer industries. ZERA is an independent, employee-managed company.
Close customer loyalty and long-term, partnership-oriented thinking characterize our actions.
Precision begins with us.
Know-how & quality
We are your specialist in measurement technology with more than 100 years of experience. Our innovative products set standards.
Neutral & comprehensive
We offer a comprehensive product portfolio – unique in our industry. Independent, autonomous, sustainable
Long-term & binding
Our sales engineers will provide you with expert advice, as will our partners in over 70 countries.
Comprehensive & flexible
Our quality promise encompasses systems, consulting, and service, which can be flexibly combined.
ZERA Test Systems Australia
Kyrgyzstan/Tajikistan
United Arab Emirates/Oman
Israel/Jordan
Belgium/Netherlands
Romania/Moldova
Shortly before our 100th anniversary, we left our production and administrative facilities in the center of Königswinter and moved into a state-of-the-art, spacious office and production building in Königswinter-Oberpleis. The future begins now.
