The SeedSeeker is a digital, portable monitor for measuring radioactive contamination. Due to the very sensitive SiPM detector, the device is very suitable for measuring I-125. The SeedSeeker is very suitable for, among other things, a short check before placing an I-125 marker. But also on Pathology for a quick check for the presence of I-125 sources in incoming specimen. In addition, it can be used for checking a clean work station. The device fits comfortably in the hand and is very easy to operate.