Police are urging business owners to improve their security after a firm was burgled for the second time.
Thieves broke into an office on Heather Lane, Hathersage, and stole computers, laptops and monitors.
The break-in took place between 7.30pm on Friday, October 11, and 12.45pm the following day.
It followed an identical burglary the previous weekend, when laptops were stolen from inside.
Sergeant Andy Wordsworth said: “The kit that was stolen in these burglaries was of paramount importance to the company.
“Burglars will strike where they think there are valuables worth stealing that will be fairly easy to take.
“I want all business owners, and residents too, to take a look at their security.”