Window locks - which one?

[djheath]

Hi,

I want to be able to have one or two of my windows open, for ventilation, but only a small amount. I therefore want to be able to lock them so they cant be fully opened from the outside. Can anyone recommend a lock to do this?

They are wooden windows and open with the hinge on the top of the window. There is the normal bar with holes in to set the position of the window. I would ideally like to secure the window on the first notch.

Any help would be great,
Thanks.

David.

 

[djheath]

I may have answered my own question by finding these:
http://www.handlestore.com/product_review.php?prd_id=190&cat_id=13

would this be suitable?

 

[wms]

That should do the job.