MILPITAS, Calif., Jan. 16, 2017 (GLOBE NEWSWIRE) -- Sierra Monitor Corporation (OTCQB:SRMC), a provider of Industrial Internet of Things (IIoT) solutions that connect and protect high-value infrastructure assets, today announced that its industry-leading FieldServer IIoT gateways are now ThingWorx Ready certified and available on PTC’s ThingWorx Marketplace ™, the single source for third-party IoT solutions, technologies, and services built on or specifically for the ThingWorx ® IoT...