Robbers smashed their way into an Upton house before making off with a tablet computer.
Between 12:50pm and 2:30pm on Monday February 18, thieves used a lump hammer and a spade to break into a house along Dorchester Road.
The offenders rifled through personal belongings before taking a tablet computer.
No arrests have been made as Dorset Police continue their investigation.
Police Constable Mari Montgomery of Purbeck Police said: "This crime has left the victim very shaken.
"I am appealing for anyone who witnessed this incident, recalls any suspicious activity in the area at the time and anyone with any information about those responsible to contact me as soon as possible."
Witnesses and anyone with information should contact Dorset Police on 101, quoting incident number 18:231.