> A proper environmental chamber is what you require, unfortunately they = are large, noisy, power hungry and most of all expensive. However, there = are businesses that rent out time on their chambers, you just turn up with = your product and test equipment. I have searched the internet and found wonderful chambers; however, the = cost starts from about 5000 USD (us dollars). I found out that they rent it = as well. Now, I need to find a place in my country that rents them. I = doubt it though. It seems that I'll start my tests with a no-frost deep-freezer that my fridge has (~18=B0C) and for the heat, I'll use my wifes blow dryer. = And go from there... Thanks everyone for their reply, Omer -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu