I would like to thank everone for their input on this topic. The environmental chamber will be too high for my purposes right now. However, I have got some great ideas to make my own chamber, as several and to the point ideas are given. I will try to make one since this is a nice product to have, it will be usefull in the feature as well. Thank you and best regards to all, Omer -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu