Ensuring accurate calibration of electromagnetic field measurement equipment is critical for reliable data collection. Despite the fact that these equipment have calibration certificates, it is useful to count on a cost-effective and reliable method to test their calibration state prior to field measurements. Thus, the design and construction of a low-cost test bench is presented in this paper. It includes the calculation process for sizing and building a Helmholtz coil and a parallel plate capacitor, which are built to produce uniform magnetic and electric fields, of known value, along a particular axis. Several tests on the proposed test bench are performed using a calibrated electromagnetic field meter. These tests showed errors in the range of 0.25 % to 15.8 % for the electric field, and in the range of 2.14 % and 12.26 % for the magnetic field. The results demonstrate the correct operation of the test bench and its potential as a rapid tool for meter testing.