"stable temperature" is correct and usable in written English.
You can use it when referring to a consistent, unchanging temperature. For example: "The room must maintain a stable temperature in order for the experiment to be successful."
" 'You give me a museum environment, with stable temperature, then I'll open it.' " A call was placed up the chain of command, and the customs officials were assured that they were dealing with a V.I.D.
Unlike underground hydroponic systems and greenhouses, which rely on various heating and cooling systems and LED lights to regulate the temperature, submersion in seawater offers a stable temperature while avoiding exposure to extreme weather conditions on land.
The deep zone, which contains about 80 percent of the ocean's volume, has relatively stable temperature and salinity patterns; its average temperature is 38.3 °F (3.5 °C).
Appropriate and stable temperature and humidity levels and an environment low in ultraviolet radiation, illumination, and pollutants can ensure the slowing of any deterioration.
Geothermal heat pumps tap into the earth's stable temperature to regulate that in your home.
The blender and oil bath supported a stable temperature condition.
All this time, vigorous stirring and stable temperature have been maintained.
The latter generations exhibited a considerably more stable temperature profile in the reformer.
Compressed air was the most indicated to keep workpiece at relatively stable temperature.
The results showed the properties of the PCM enabled 5%% more stable temperature for the internal space during winter.
A stable temperature below 35 °C is required to efficiently reject process waste heat of an absorption chiller.
