The phrase "a device that controls" is correct and usable in written English.
You can use it when describing a specific type of device that has the function of controlling something, such as machinery, systems, or processes.
Example: "The remote is a device that controls the television from a distance."
Alternatives: "an apparatus that regulates" or "a tool that manages".
A valve is a device that controls the flow of a fluid.
Fiber-reinforced polymer (FRP) wire has been applied to confine concrete through a device that controls the confining pressure during installation.
A device that controls the direction of heat flow could one day have valuable uses in microelectronics and energy-efficient buildings.
A NW decoder is a device that controls many NWs with a much smaller number of lithographically produced mesoscale wires (MWs).
"Any tingling in the area?" asked neurologist Erwin B. Montgomery Jr., standing over Joan and tweaking the knob on a device that controls the voltage, frequency and duration of electrical stimulation.
Objective: The purpose of this study was to compare a device that controls flow rate during injection through use of a foot pedal with a conventional atraumatic syringe injection technique.
In it, he describes his childhood of luxury as the son of Ruth Gardner, a Midwestern heiress whose family invented the Gardner governor, a device that controlled steam engines.
Breast milk from multiple donors is then pooled under a laminar flow hood, a ventilation device that controls the circulation of filtered air to prevent contamination while milk is being transferred to new containers.
Large control device means a control device that controls process vents, and the total HAP emissions into the control device from all sources are greater than or equal to 10 tons/yr.
Small control device means a control device that controls process vents, and the total HAP emissions into the control device from all sources are less than 10 tons of HAP per year.
The team also reported having trouble with its ram, a hydraulic device that controls the fore and aft movement of the mast.
