Radcal is the recognized leader in radiation and invasive measurements for medical X-ray QA, X-ray test and X-ray compliance. Other applications include, but are not limited to industrial X-ray and nuclear power ionizing radiation measurements.

Radcal's reputation had it's beginnings in 1975 with the introduction of the MDH 1015. The 1015 was designed for the FDA as an easy-to-use, reliable and accurate radiation measurement instrument.

In 1996 Radcal acquired the Machlett DynalyzerTM product line from Fischer RMS. In doing so Radcal has become the sole manufacturer of the Dynalyzer/HV1 product line and sole source for factory approved calibrations.