The phrase "a device that permits" is correct and usable in written English.
You can use it when describing a tool or mechanism that allows for a specific action or function.
Example: "The new software is a device that permits users to edit videos with ease."
Alternatives: "a tool that allows" or "an instrument that enables".
Escapement, in mechanics, a device that permits controlled motion, usually in steps.
A clutch is a device that permits the smooth, gradual connection of two shafts rotating at different speeds.
Google, the search engine company, has started to sell the Google Search Appliance, a device that permits companies to locate documents within their databases.
Students are expected to join from a suitable, quiet location, with a device that permits full participation in the class activities.
This resembles a description of a man using a modem, a device that permits computers separated by hundreds or thousands of miles to communicate with each other over telephone lines.
This is the first report of a device that permits 'real time' monitoring of exhaled M. tuberculosis.
Those who play in tournaments and clubs are familiar with the bidding box, a Swedish device that permits bids to be displayed in clear fashion on the table.
The RootChip is a microfluidic device that permits environmental manipulations during continuous imaging of growing Arabidopsis roots.
The Cathlocator- is a novel device that permits real time localization of the end of feeding tubes by detection of a magnetic field generated by a small electric current in a coil in the tip of the tube.
To eliminate the risks of post-operative extraluminal contamination during EFTR, a suturing device that permits inverted serosal apposition with minimal risk of injury to the surrounding organs should be used for defect closure.
On the far side of the hill is a replica of Christ's tomb, complete with an electronic device that permits church staff to roll back the boulder at the flick of a switch.
