TonyUK
TVWBB Guru
I've just purchased one of these. It's a single probe food/pit temp checker. The tip of the probe measures food temp, & the barrel shape on the probe measures pit temp. Which means only having to run one wire to the smoker/grill. 
It's has a really easy user interface, & it feels very sturdy. I did a temp check against a pan of boiling water. It registered 211ºF. Not bad at all. Didn't do the freeze check. I haven't used it yet to cook with, but plan to next weekend. I got it cheap on Amazon, coz it had a damaged box, so I thought I'd give it a go. £20.00 (US$35.00 equivalent).
Details can be found here.
It's has a really easy user interface, & it feels very sturdy. I did a temp check against a pan of boiling water. It registered 211ºF. Not bad at all. Didn't do the freeze check. I haven't used it yet to cook with, but plan to next weekend. I got it cheap on Amazon, coz it had a damaged box, so I thought I'd give it a go. £20.00 (US$35.00 equivalent).
Details can be found here.