Select your individual Meter Test System (MTS) from our single components. Hints for useful combinations of devices can be found on the corresponding product page.
Beyond our conventional products for metrological testing you also find components of our new digital measuring system. Several modules of this product line cover the metrological testing as well as the testing of data communication.
In order to recognize easily if one of these products is suitable for data communication we marked it with an icon. We call these products suitable for Smart Meter testing.


Multiuser Error Calculator


Display unit


Basic module


Test voltage module


Communication module


Basic module


Test voltage module


Communication module CL0


Communication module M-Bus slave


Communication module IR


Communication module RS485


Communication module RS232


Communication module EDL


Communication module for Basiszähler (electrical energy meter)


Communication module for TK2020-02


Transmitter/Receiver module

When it comes to measuring electrical current, having the right components can make all the difference. ZERA, a leading company in the manufacturing of AC current measuring systems, offers individual components that can be customized to meet your unique needs. Whether our equipment is to be used in the laboratory or in the test field, ZERA's varied product line provides all the necessary elements to make accurate measurements of AC current and voltage. With years of experience in the industry and an unwavering commitment to quality, ZERA has earned a reputation for delivering reliable and effective measurement solutions tailored to each customer's specific requirements. Don't settle for less when it comes to accuracy - trust us to deliver the components you need to make your next AC measurement system a success.

We also offer a wide range of services, from after-sales service to product training, so you can be sure that every single component is working correctly and can be used efficiently by you. Our team of experts will work closely with you to ensure that the installation is done to the highest standards and that the components you purchase meet all safety regulations.