How much difference in temperature will produce "condensation"?

How much difference in temperature will produce "condensation"?

Condensing is after heat exchange, under an atmospheric pressure, when the temperature is lower than the dew point temperature, the water vapor in the air will condense on the surface.
Therefore, under this condition there is no absolute correlation with the difference of a few degrees, but it will be related to the relative humidity.
When the relative humidity is higher, the dew point temperature will be higher.

When the relative humidity reaches 100%, and the dew point temperature is equal to the air temperature then it will condense into dew. When the humidity reaches 100%, it will begin fogging, and the air naturally starts to condense water vapor into the fog.

eYc dew point transmitter is suitable for measuring high pressure and low humidity environment.
Applications:Compressed air system, Freezer, Adsorption machine, Plastic dryer, Industrial drying process, Paper, Chemical process monitoring.

Dew point transmitter product recommendation:
eYc THS88 Industrial High Pressure Low Humidity Dew Point Transmitter
eYc THS88 Plus Industrial High Pressure Low Humidity Dew Point Transmitter

Temperature & Humidity transmitter product recommendation:
eYc THM06 Industrial Grade High Temperature Multi-function Dew Point Transmitter
eYc THS30X Series Multifunction Temp. & Humid. Transmitter(Indoor/Duct/Remote/Outdoor)
eYc THM80X Series Industrial Grade High Accuracy Temperature & Humidity Transmitter
eYc THM86/87 Industrial Grade Multifunction Dew Point Transmitter