Wireless temperature probes have become increasingly popular over the past few years. Different companies were at the cutting edge with the technology, but I’d credit Traeger with their MEATER brand for really commercializing the technology.
From when MEATER popularized wireless probes, many different companies have entered the space from grill brands to temperature focused companies like ThermoWorks. There’s no shortage of players, which has actually been to the detriment of MEATER.