This is a Noise-O-Meter / Metre (I live in Australia and we spell it 're'!). I have included both spellings so that no matter where you live in the world, you will have the correct spelling.
Print out, cut out, laminate and attach the arrow with a split pin to easily set the noise level expected for given activities.
Check out the preview for an indication of item quality.
This is my first item uploaded to Teachers Pay Teachers - I hope you enjoy it! I've also started a blog which you can follow at http://downunderteacher.blogspot.com/