This document provides a high level presentation of TripleF-Sniffer and the Onboard Monitoring Box products from ERTMS Solutions. TripleF-Sniffer is an ERTMS protocol analyzer that can decode protocols like STM, Euroradio, Subset-098, and custom protocols. It uses a passive onboard monitoring device to perform full decoding of the protocol stack. The Onboard Monitoring Box connects passively to the train to collect information for monitoring and uses GSM, GPS, and WiFi to upload data and update software. These products are used by several railway companies and signaling providers to support ERTMS.