Maverick Et732 Long Range Wireless Dual 2 Probe BBQ Smoker Grill Meat Thermometer with Original Meathead Temperature Magnet Guide (Black) Its main components include receiver, transmitter and probe wires (heat resistant to 716 degree F). Whenever the meat temperature becomes less/more than the programmed temperature, the receiver beeps & flashes. The system settings are stored even if the unit gets turned OFF.