Traffic alarm

That's easy :)

1. Create a schedule for the time you don't want the traffic to be low:
   1. Go to Setup > Account Settings > Schedules and create a new one.
   2. Select the days and times where the traffic shouldn't be low. We're done there then.
2. Add a new notification under Setup > My Account > Notifications:
   1. Select the schedule you just created
   2. Select the notification methods you want
3. Open the sensor and create a threshold trigger notification for it:
4. When the channel traffic is below 40 for over x seconds, execute the notification you just created
   This should do what you want :) Let me know if you have any further questions!