Always keep a watchful eye with the GrillEye Smart Bluetooth Thermometer, which continuously monitors your grill or smoker and sends a message to your smart device when your food is ready. The GrillEye connects to your iOS or Android device via the GrillEye app and Bluetooth up to 300 feet. From the app, you can choose between preset or custom temperature alarms and timers. The GrillEye comes with two (2) space grade aluminum hybrid probes, but you can connect up to six (6). Monitor multiple items by utilizing separate alerts, temperature readings and timers for each probe. The current temperature and target temperature of each probe are displayed simultaneously by the LED indicators on the thermometer so you can use the display to monitor your food, even without your smartphone. The GrillEye screen has an anti-glare coating so you can read the temperature easily, even in direct sunlight. This item comes with two (2) AA batteries.