This article explains how to check whether or not your sensors are currently online and sending data.
Check your Sensors in the App
You can login to the Sigrow app via:
https://app.sigrow.com/webapp/
Check last upload
In the top left corner of each sensor displayed in the "Nodes Map" dashboard appears a "last uploaded" indicator (see image below). This indicates the last message that was successfully relayed to the database.
Most Sigrow devices have a sampling interval of 5 minutes. To check the set sampling time of your device, please reference the following page:
Sampling time of sensors
The data displayed for each sensor is the data collected from it's last successfully received message. Thus, a sensor with a "uploaded x ago " of x days will still display the data from x days ago
Sensor on left: last successful message was sent 4 hours ago. The data readings displayed for this sensor are those taken 4 hours ago.
Sensor on right: last successful message was successfully received a few seconds ago.