Burton The Segretto Wall Safe Size 1 by Burton Safes includes a innovative hidden second compartment which is accessible by entering the second user code. The safe provides a recommended cash rating of £4,000 or £40,000 valuables rating and is secured by an electronic combination lock which requires mains power supply. The Segretto Wall safe Size 1 will arrive pre-built into a high density concrete unit, ready to be installed within a wall.