The image is a photograph of a yellow sign with black text that reads "RADIATION ZONE SURVEILLÉE SUPERVISED AREA". The sign is located in a room with blue lighting and there are various objects in the background. The sign also has a symbol of a radioactive symbol on it, indicating that the area is a radioactive zone. Below the symbol, there is a label that says "DOSIMETER OBLIGATORY DOSIMETRE OBIGATOIRE" which translates to "Dosimeter obligatory" in English. There is also a barcode and a phone number on the sign.