Trying to connect 2 parts together, what should I use?

[Henradrie]

I have a sensor with 20 pins in 2 rows spaced 1mm apart that I want to connect to a standard breadboard. What part do I use to do this?

There are plenty of headers available but they only connect same to same. I want to connect something smaller to something bigger.

 

[Harald Kapp]

There are adapters available like this one. Use two of them back to back or look for "pitch changer" using your favorite search engine.

 

[shrtrnd]

The 'pitch' is the distance between the pins.