165ft Long Range Model: 100% WIRE-FREE that's perfect for outdoor cooking. The first truly wireless smart meat thermometer. Monitor your cook using the FREE app available for iOS (10.3 and later) / Android (5.0 and later) smart phones and tablets. 2 Sensors, 1 Probe: Dual temperature sensors can monitor internal meat temperature up to 212°F and ambient / external temperature up to 527°F simultaneously. Dishwasher safe.