Break free from spotty Bluetooth. RFX by ThermoWorks is the only wireless meat thermometer you can actually rely on. Astonishingly stable, powerful, and long-range, our patent-pending radio frequency technology makes it easier than ever to monitor that brisket in real-time, from anywhere.- Everything you need to get started: RFX GATEWAY (receiver), RFX MEAT (wireless probe), Pro-Series Air Probe (ambient temperature), grate clip, charging block, power adapter, USB cable, and probe rings.Accuracy in every sensorRoast, smoke, grill, and fry meats to restaurant-level perfection. Four hidden probe sensors are independently calibrated to find the true thermal center of your cookand deliver 0.9F accuracy between 14 and 212F. Precision you can traceEach RFX MEAT probe comes with a digital certificate of calibration to certify that your instrument has been tested against international laboratory standards, including those set by the National Institute of Standards and Technology (NIST). Ambient temperatures you can trustCompetitors built-in ambient sensors give inaccurate readings as cold meat acts as a heat sink, pulling heat from the metal probe and skewing the measurement of the ambient sensor by 75F or more. Even if these sensors were accurate, they’re placed in an evaporative cooling zone around the meat. This means your ambient sensor is not reading the accurate temperature of your cooker. Our Pro-Series Air Probe plugs directly into RFX GATEWAY for precise placement and true ambient temperature measurements.