When « Stop-Flash » is used for the first time, the GMT time appears on the screen.
You can use the three small buttons (A, B and C) in order to adjust the clock.

While driving, the device screen shows the current speed of your vehicle.

When you come near a fixed trap (1500 m earlier) « Stop-Flash » will warn you by an audio signal that will become more intense when you near the trap at 350 metres. At the same time the device screen displays the distance left to the trap (from 1500 to 0) instead of showing you the current speed.

In the 350 m zone, « Stop-Flash » will show you what is the speed limitation in this area and here you can switch the screen between displaying the limitation or the distance left. To do that simply press button D.

When you come near a possible mobile speed trap « Stop-Flash » will warn you by an audio signal and the distance left to the end of the dangerous zone (Up to 3000 meters) will be displayed on the screen.

You can adjust the sound volume with button E. (1 position - « silence » and 4 levels of sound). The current sound settings are represented by a small icon in the lower right color of the screen.

In order to activate the « Speed Limit » mode, adjust the speed limitation by pressing :

Button A : sets speed limit to 50, 40 or 30 km/h depending on the times you press it.
Button B : sets speed limit to 90, 80, 70 or 60 km/h depending on the times you press it.
Button C : sets speed limit to 130, 120, 110 or 100 km/h depending on the times you press it.

Each of the buttons has another state - "not set".

From this moment on, an audio signal will warn you each time you overpass the selected speed limit.

Note : The speed limit can be adjusted only when the « Stop-Flash » screen is set to display your current speed. If it shows the time, the A,B and C buttons will change the time and not set the speed limitation.