Logic Masters Deutschland e.V.

Announcement!: The next Double Trouble puzzle will be the 10th in the series. To celebrate that, I have something special planned.
A Double Trouble mash-up puzzle with all 5 clue types shown so far.
The puzzles published so far should be a good practice for this. Links to the puzzles can be found under today's puzzle.

Rules:

Sudoku: Fill every row, column and 3x3 box with the digits 1-9.

Thermometer: On thermometers the digits strictly increase starting from the bulb.

Double Trouble: Digits in cells marked with a blue diamond have the double value along thermos (f.e. a 2 in a diamond cell is treated like a 4 for the thermometer rule).

Have fun solving!

Sudoku on:
f-puzzles
("Deactivate "Highlight Conflicts" in the "Settings")
CTC-App

The Double Trouble series:
It's a simple idea. Treat a few cells as if they are double their value. But it has tons of interesting logic and can turn known rule variations completely upside down. With this series I want to show this diversity.

Variant introduction: Easy to moderately difficult puzzles that show the combination of doubling cells with different variants.
Double Trouble - Arrows
Double Trouble - Killer
Double Trouble - Skyscraper
Double Trouble - XV

Easy Double Trouble: Puzzles with easy doubling cell logic.
Doubletime

Advanced Double Trouble: The puzzles in this section present more complex logic around doubling cells.
Wrecking Ball

Puzzles with hidden doubling cells: The doubling cells are not given here, but must be determined by the solver.
Doubles Hidden Inside Squares

Symmetry series: Here the basic clues form a symmetrical arrangement that provides an unique solution by specifically placed doubling cells.
The Diamonds Will Do It

I look forward to any feedback and suggestions about the series.