Get an ET-732. It will change your life. The connectivity with these transmitters are the real difference maker. The 732 has 300 ft of connectivity, and I've never lost connection through walls. I've owned some cheaper ones that i bought at a box store, and poor connectivity was very frustrating.
Being able to know what's going on in your smoker, and the inside of your meat from where ever in the house is priceless IMHO.
You won't be sorry.
Joe. UDS, Traeger COM190, Infrared Grill; Maverick ET-732, Red Super-fast Thermapen