The CERN Radiation MONitoring System (RadMON) is a radiation tolerant monitoring in-house system developed by the EPR section. This system is entirely based on commercially qualified components (COTS). More than 400 units are deployed internally, in the different particle accelerator and experiments at CERN, and externally, such as at J-PARC, the Japan Proton Accelerator Research Complex. RadMON is able to measure four types of radiation effects : Total ionizing dose (TID) through RadFETs, displacement damage equivalent fluence through P-I-N diodes, and thermal neutron (ThN) and high energy hadron fluences through SRAMs. All measurements are processed on the fly and published directly to Timber.