I highly recommend Thermoworks products. I got the 'Signals' monitor that comes with four probes. The product is rugged, works well, and has a polished user interface. The probes are really well designed, too, and I haven't had one fail, yet. When I do get a failure (it happens), replacement probes are the least expensive I've seen for any monitor.
The customer support is also 1st class. I bought mine just before Thanksgiving 2020 on one of their general sales. Just a couple days later they put this specific model on sale at a better price. I called up support and they refunded me the difference with no begging required.
Smokin-It really needs to reach out to Thermoworks to build the PIDs/software for these smokers and ditch Auber.