The phrase "a device that allows him" is correct and usable in written English.
You can use it when describing a tool or mechanism that enables a person to perform a specific action or function.
Example: "The new software is a device that allows him to edit videos more efficiently."
Alternatives: "a tool that enables him" or "an instrument that permits him".
Homunculus also gives Eike a device that allows him to travel through time and make changes in the past that prevent his own future deaths.
Morty of course understands that what today's harried white-collar family man needs is no ordinary remote, which is how Michael ends up with a device that allows him to hopscotch through time.
So the company gave him a cell phone and rented a device that allows him to light the boiler by remote control by dialing into the company each morning.. "I do this five days a week, and I'm on call in case the flame goes out," Rabbi Mendelson said.
He made Her First Romance at Monogram in 1940 and then moved to Columbia, where he helmed six movies in 1941, including Under Age, a crime drama about reform-school girls who are tricked into working for gangsters, and the horror film The Devil Commands, which starred Boris Karloff as a scientist who attempts to invent a device that allows him to communicate with his dead wife.
Meanwhile, scientist Newton Geiszler creates a device that allows him to drift with a damaged Kaiju brain.
The five-time NBA champion posted a video onto his Instagram account of him running on an anti-gravity treadmill, a device that allows him to exercise without having to support all of his body weight.
He used a clinometer, a device that allowed him to determine the height by triangulating, using the tree, his own position and the angle of the distance between them.
What unites the peaked roof of an Alabama warehouse, a K.K.K. hood and sculptures of white obelisks that resemble the Washington Monument is their conical geometry — an understated device that allows him to show the thread that in his mind connects his old home with his new.
Now a tubby 52, Robert, Viscount Cranborne sits in the House of Lords as Baron Cecil of Essendon in the County of Rutland, propelled there by "writ of acceleration", an obscure device that allows him into the Lords even while his father (Robert Edward Peter Gascoyne-Cecil), Marquess of Salisbury, still lives.
He shows up in New York and grabs a time-travel device that allows him to go back to the day in 1969 when he was captured by a member of the Men in Black corps: Agent K.
