In the non-display transmitter model, the status of the transmitter and probe is indicated by LED color and whether the LED blinks. When the transmitter is ON, one of the LEDs is always illuminated (solid or blinking). If no LED is illuminated, the transmitter is OFF.
| LED color and flashes | Description |
|---|---|
| Green | The transmitter, web UI, and probe are working normally. |
| Green, blinking | The transmitter is starting up or no probe is connected to the transmitter. |
| Red | The transmitter is booting, and is not ready to receive measurement data. |
| Red, blinking 4 times | The probe has been disconnected. |
| Red, slowly blinking | The transmitter is in error state. |