Sensors are properties which show the state of an entity and provide a real-time picture of an entity within an application.

You can view the sensors available on the application using:

{% highlight bash %} $ br application Tomcat sensor {% endhighlight %}

To explore sensors on a specific entity use the sensor command with an entity specified:

{% highlight bash %} $ br application Tomcat entity tomcatServer sensor {% endhighlight %}

To display the value of a selected sensor, give the command the sensor name as an argument

{% highlight bash %} $ br application Tomcat entity tomcatServer sensor webapp.url
{% endhighlight %}