I'm useing a $3.99 turkey fryer Thermo from Academy as well as a Chaney Acu-rite meat probe about $15.99. Checked both in boiling water and both read the same.
Turkey Thermo w 12" probe
Acu-rite meat probe
Small Charbroiller, 40 year old barrel pit, UDS, 97 Weber Performer, Brinkman gas grill.