The ET-73 had issues with signal range as well as signal going through walls. People have experienced quite a few issues with this. I would spend the extra $20ish bucks to get the ET-732 for the better signal range as well as dropped signals not happening.
*Weber Mini WSM x2 *
*Weber 22.5in OTG x2 *
*Weber Touch and Go Performer *
*Sublime Smoke UDS*
*Maverick ET-732 * World's Fastest Blue Thermapen *