- A leading supplier of wireless M2M products and overall solutions, Siretta specialize in wireless modems, industrial routers, and cellular signal analyzers. To complete the wireless range, Siretta also has the widest range of antennas, cables assemblies, and RF connectors/adaptors. In a world where new technology provides seemingly endless opportunities for new applications, the challenge remains of how to continuously deploy the right technology and ensure consistent and optimum performance. Siretta’ s products have been developed and refined over many years, creating a set of devices that many customers rely on for mission critical applications.