Thanks, I got my Smart Plugs and they brand new as advertised and arrived quickly. You got to love the Iris V1 hardware. It was really well made and very reliable. Good to know that you will be a source for these devices while they last, anyway. Disclaimer, I know Scunny and he is one of the good guys.
I can pick out some used ones in good shape or send you some V1 smart buttons that are brand new. They also use the CR2 batteries. The Titanium from battery junction is also my choice for CR2's.
Either, the contacts, motions and buttons all work well. I have used them in a freezer at sub zero and in my business at temps greater than 125 for times more than 96 hours at at time.
I just place the sensor directly in the freezer and fridge, I do have PayPal and I do have some brand new ones but I'm holding on to those. If you're just after the temp reporting the buttons work just as well and I have adequate amounts of brand new ones.