The Weber iGrill 3 mounts directly into your compatible Genesis II or Spirit II gas grill (must have an “iGrill 3 Ready” plate on the side table). This app-connected thermometer allows you to monitor the doneness of up to four cuts of meat, from beginning to end, and notifies you on your smart device once food has reached the perfect temperature to serve. With 250 hours of battery life, this thermometer includes two color-coded, professional-grade meat probes and has a maximum four-probe capacity. It seamlessly pairs with your mobile device via the Weber iGrill app to immediately alert you once your foods have reached their ideal doneness, which means you’ll never have to lift the lid on your grill or smoker and interrupt the cooking process. Apple: iOS 11.1 or higher required: • iPhone 4S or later • iPad 3rd generation or later • iPad mini • iPod touch 6th generation or later Android: Most Android phones running Android 6.0 or higher and Bluetooth®️ 4.0 or higher. Please note: Some smart devices are not compatible with the Weber iGrill App, including: iPhone 4, iPad 1st or 2nd generation, Huawei phones.