Between Prasat and the border there is a sign saying camera in use. If this is stationary or if they just put this sign up when on days they are using the camera i do not know. Anyway i got a pretty sharp pic of my car on that road with a speed 0f 104 km registered, had to go to Police Station in Surin to pay 500. Speed limit on that road was a the time 90 km. I have also later on visiting Kap Chung noticed that road sign in thai and english warning camera in use. I have seen those camera signs other places in the country as well, but i dont know if they move them around and only put them up on days they are using this kind of speed trap. Being Thailand, the fine came to the adress i lived at when i first registered a car in thailand in 2005 and i was just lucky to get hold of it as this house is habitated by an angry ex