In about 4 weeks i will swap my summer tires for winter tires, but my winter tires have no pressure sensors.

Now I do not want to watch all the winter against a warning light. How did you solve this and what solutions are there? In the Netherlands the sensors cost about $ 800 at the dealer.

 

Not sure about the tire shops out in your country but the tire shops here will sell you rebuilt tire sensors. Might want to check with some local shops vs going to the dealer.