Features Main Unit: 1) Bluetooth control with APP downloadable in Apple Store&Google Play Store, named\'Grill Now3\' 2) Compatible with IOS6.0+ & Android 4.3+ (Bluetooth 4.0+) 3) Operating temperature range: 0C to 50C (32F to 122F) 4) Pre-programs: Beef, Lamb, Veal, Hamburger, Pork, Turkey, Chicken and Fish. 5) Doneness selections: Rare, Medium Rare, Medium, Well Done 6) App can run/sync in the background of Apple IOS system/Android system 7) Custom settings ensure you cook perfectly 8) When the temperature is 300F, fire alarm will happen if the temperature heats up more than 50F in 20s 9) Graphical display of probe temperature versus time for each probe in 2 hours. Remote Sensor Probe: 1) Heat resistance value of wire: