Device List
The device list is a list of all devices connected to your account. The device list is a great way to get an overview of all your devices and their status.
Device status
Every device shows a coloured dot next to its name, and a status pill in the Status column counting the checks behind it. Click either one to see the individual findings. The dot takes the colour of the most serious finding: green for OK, yellow for a warning, red for an error.
For LoRaWAN devices, two of those findings describe the radio link. They are reported separately because they measure different things and have different remedies. A device can be heard perfectly and still be expensive to run, and vice versa.
Signal strength
How well the receiving gateway hears the device. Taken from the strongest gateway that received the last uplink, in dBm. SNR is added to RSSI when SNR is negative, because a transmission below the noise floor genuinely weakens the link. A positive SNR is headroom, not extra reach, and does not improve the rating.
| Signal strength | Rating | Colour |
|---|---|---|
| Above -110 dBm | Excellent | Green |
| -110 dBm down to above -115 dBm | Good | Green |
| -115 dBm down to above -120 dBm | Fair | Green |
| -120 dBm down to above -124 dBm | Poor | Yellow |
| -124 dBm or below | Bad | Red |
| Overdue on its expected report interval | Offline | Red, struck-through icon |
A LoRaWAN device that has not reported within its expected report interval shows Offline instead of a rating: the last reading it sent no longer describes a link that is carrying anything. Offline and Bad are the two signal verdicts that turn the device red; efficiency never does, however costly the link. Devices that do not declare an expected report interval are never called offline, because there is nothing for them to be late against.
Both ratings, Offline included, apply only to LoRaWAN devices. A device reached over MQTT or any other integration has no LoRa signal, so both columns stay empty for it and its silence is reported once, as Device did not report in time.
Three of the five steps are green: a link at -118 dBm still delivers its messages reliably. Only below -124 dBm is the link genuinely at risk.
Signal strength does not depend on the spreading factor. A device a few metres from its gateway has an excellent signal even while it is still transmitting at SF12.
Network/battery efficiency
What the link costs. A high spreading factor keeps the radio transmitting far longer per message, which drains the battery faster and consumes more of the shared duty cycle.
| Spreading factor | Data rate (EU868) | Rating | Colour |
|---|---|---|---|
| SF7 | DR5 | Excellent | Green |
| SF8 | DR4 | Good | Green |
| SF9 | DR3 | Good | Green |
| SF10 | DR2 | Fair | Green |
| SF11 | DR1 | Poor | Yellow |
| SF12 | DR0 | Bad | Red |
The spreading factor is used when the device reports one; otherwise the data rate is translated to a spreading factor using the EU868 mapping shown above. Other regions pair data rates with different spreading factors, so an efficiency rating derived from the data rate alone can be optimistic outside EU868.
The colour above is the one the efficiency meter itself shows. The contribution to the device status is capped at a warning even for SF12, so poor efficiency never turns the status dot red: a device that drains its battery faster is worth acting on, but it is not an outage.
Devices join at SF11 or SF12 and work their way down as adaptive data rate settles, so the first few frames say nothing about how the link will perform. Until three frames have arrived, efficiency reads Measuring rather than a rating, which is why a newly added device no longer looks like a problem it is not. Signal strength is not held back this way - it is valid from the first uplink.
Showing them as columns
Both ratings are available as columns. Add them from Customize columns, or apply the Connectivity preset, which shows signal strength and efficiency next to the raw RSSI, SNR and spreading factor values they are derived from.
The columns show the meter alone; hover over it to read the rating in words. More filled bars is better in both columns. An unfilled meter means a reading is still being established, and a struck-through wireless icon means the device is offline.
The info icon in each column header opens the full scale for that column, with the rule behind every step, so nobody has to guess why a device landed where it did.
Options
The device list has a number of options that can be used to display, filter and sort the list of devices.
Show number of devices
Shows number of devices currently displayed in the list and the total number of devices connected to your account.
Devices per page
Select how many devices to display per page.
Interval update
Refreshes the device list when clicked. Can select update interval. Note that the device list has real time update enabled by default, and selecting an update interval will disable it.
Text size
Select text size for the device list.
Group by
Group devices by the order field set on your devices. This is useful if you have a lot of devices and want to group them. For example if you have multiple rooms and you set the order field to the room name on each device the device belongs to, you can see all devices in each room.
You can set order by using the Select Many -> Edit -> Order field feature.
Table and grid view
Choose to display your device list in a table or grid view.
Paging
Navigate through the device list using the paging buttons.