The phrase "a device that enabled him" is correct and usable in written English.
You can use it when describing a tool or mechanism that allowed someone to perform a specific action or achieve a goal.
Example: "The new software was a device that enabled him to complete his tasks more efficiently."
Alternatives: "a tool that allowed him" or "an instrument that facilitated him".
Similarly, Neil Harbisson, a colour-blind artist who wears an "eyeborg"—a device that enables him to "hear" colours successfully argued with British authorities that he should be allowed to wear the device in his passport picture, on the basis that it is part of his body.
A decade ago, Weihenmayer began using the BrainPort, a device that enables him to "see" the rock face using his tongue.
Six of the book's 17 stories are told in female voices, a device that enables him to record the often disparate worlds of women and men with an insider's eye.
The story follows a Victorian scientist, who claims that he has invented a device that enables him to travel through time, and has visited the future, arriving in the year 802,701 in what had once been London.
Maybe I should have expected that, since he has been in favor of introducing the latest technology to the very young ever since he received for his eighth birthday a 007 Spy Attache Case that contained a working telescope, a radio and a Morse code device that enabled him to establish contact with an intelligence source across the street (code name Johnny).
Melbourne Magistrates Court heard that Dobson had an electronic device that enabled him to transmit the results of points before they were officially distributed globally.
They had developed a stone age Kalashnikov - a device that enabled them to throw a spear-like implement 200m - twice as far as the best javelin throwers.
But desire spawns invention, and Mandel is seeking a patent on a simple, platelike device that enables him to attach a conventional 35mm Nikon lens to a digital astronomy camera.
With the help of sound artist Daniel Jones, writer Frank Swain created a special hearing device that enables him to hear Wi-Fi signals.
By the same token, developers may regard a bonus plaza simply as a device that enables them to add more rentable floors.
