Wideband A/F gauge. best bang for the buck?

[Toy_Yoda]

Wondering if you guys can recommend a reasonably priced gauge that's still accurate enough to keep an eye on fuel mixture.

[cali yaris]

^ What's your preference -- digital, analog or hybrid (both)?

I have some on the shelf I'd like to move out.

[Toy_Yoda]

Hi Garm! Leaning towards digital with audible warning if things start getting too lean.