Analog Panel Meter
Boiler Level Control
Current & Power Guards & Controllers
Dewpoint & Hygrometers
Digital Panel Meter
Digital Power/Multi-Function Meter
Earth Fault Monitoring & Protection
Fire Pump Controllers
Frequency & Voltage Guards
Gas Warning Systems
Generator Protection & Controllers
Industrial Communication & Converter
Jockey & Alarm Panels
Loss of Mains Protection
Power & Test Equipment
Process Signal Transmitter
Protector Trip Relay
Years of Precision in Development and Manufacturing of Test Systems
- Portable Meter Test Systems
- Precision Laboratory Systems
- Stationary Laboratory Systems
- Transformer Test Systems
Who are ZERA?
Zaehler-Eichund-Reparatur-Anstalt. Our focus is the development and manufacture of test systems for measuring voltage, current and power. We do not produce electricity meters or instrument transformers, but the test solution for them. Therefore, we are able to guarantee our absolute neutrality in this highly sensitive field. We are committed to the quality seal "Made in Germany" for more than 90 years.
What does ZERA stand for?
Over a period of several decades, ZERA has changed from a service company for meter calibration into a highly specialized producer of test equipment. Our solutions have helped to shape technological developments in testing. ZERA test systems fall into the highest possible accuracy classes and are recognized worldwide. Thus, for example, our calibration laboratory was granted accreditation by the German Calibration Service (DKD) at the beginning of 2000 - an accreditation accepted by metrological laboratories all over the world. On this basis, we have been developing and manufacturing highest precision portable and stationary test systems for decades.