These permanently mounted cameras monitor for instantaneous violations of maximum speeds. If a Camera Installation also monitors for Red light Violations, a separate Red Light Camera is needed.
The Max Speed for a Speed Camera should be set to the speed limit for the road which the speed camera is monitoring. Leave the max speed set to blank if speed is not monitored. Zero is not blank; a max speed of zero will cause the camera to always generate an audible alert.
Red Light Camera
Permanently mounted cameras monitor for red light violations.
Sometimes a fake device is placed. Dummy cameras are sometimes added to prevent people from reporting these as actual cameras.
In the app a dummy camera looks like this one: