Life of a thermostat

So as above says, what's expected life of one

I can't give you a good answer, but I can tell you that I have a couple Helix DBS-1000's that have been running non-stop for over 8 years now. I expect they will go for at least another 8.

thanx, thats good to know

I have a Herpstat one still going that I bought in 2003.