The Data CollectorData from sensors is normally collected by a local Gateway the tags the data and sends it to the cloud server. JemRF has a WiFi Gateway for their wireless sensors and also provides application software to use a Raspberry Pi as a gateway.
The JemRF WiFi Sensors at as both sensor to collect reading and gateway to format that information and send to the server.
Gateways are where the magic of the system happens, they controls how often the hardwired sensors are monitored.
They processes the messages from the wireless RF sensors and forward that information to the cloud server.
The Store and Forward Gateway provides the extra features of locally storing data with the time it was received to the nearest second. It keeps that information until it has been successfully uploaded to the cloud server.
This allows drop outs of the local Internet or WiFi to not result in a loss of data.
With an attached battery pack, the Store and Forward Gateway could go on road trips in the back of a refrigerated supply truck and when it returns home, dump the days readings for review.
The SensorsThere are a variety of supported sensors, the most common are the temperature and door contacts. The water temperature sensor has the water proof sensor at the end of a 2 foot extension. This allows for monitoring items like inside a fish tank.
Sensors are easy to install and relocate as needed, just power on, place inside or near what you want monitored and your are done.