A total of 200 devices can communicate with a single instance of JEDI Pro or JEDI Pro SSE. The device data can come into JEDI Pro via any communications method supported by the enabled data collectors (i.e. - MQTT, HTTP, TCP CSV, Seeed SenseCAP (SSE version only), virtual sensor or custom data collector.
The device dashboard shows the total device count. Look for the Device ID, "system". The associated property, "DevicesRegistered" will contain the current device count.