The sensor is not running when testing out of water
You activated the sensor water-switch outside water or in a low level of water (for example for testing purpose) but it does not switch to running mode and does emit any data.
![](../img/iconeFleche.png)
- Connect the sensor to Mosa2 and check
if there is an orange warning sign at the top of the window. If yes, it means
the virtual-water switch is on.
- Go to Communications page, then in Options, click
.
- Deactivate the Virtual water
switch option.