From CHEF iQ this Smart Thermometer Hub 2 Probes features: Perfectly Cooked Foods: This smart cooking thermometer takes away the guesswork with real-time internal temperature updates, flip reminders, rest indicators, and more. Quad Sensors: Get maximum cooking accuracy from any angle with 3 internal and 1 ambient sensor. Audibale and Visual Reminders: Hear reminders from the charging hub speaker as well as App notifications to ensure you don’t miss a thing. Hours of use with minutes of charging: This indoor outdoor thermometer is ready when you need it with 40+ hours of use from a 10-minute charge or charge for 1 minute and get hours of use. Unlimited Wireless Freedom: Long-range connectivity means you can remotely monitor cooking while chatting with friends and family and still get a perfectly cooked meal. Safe for high heat: Safe for temperatures up to 572°F to use as air fryer, deep fryer, slow cooker, grilling, BBQ, oven, sous-vide, smoking, rotisserie, and convection oven thermometer. Easy-cleaning: Waterproof and dishwasher-safe probes allow you to soak or toss in with other kitchen dishes for simplified cleanup. Cooking Presets: Get help setting optimal cooking times for various foods with choices for meat, cut, and doneness right on the CHEF iQ App, or choose from hundreds of delicious recipes. Protect your protein: Ultra-thin design keeps proteins intact and juices inside for perfectly cooked meat every time. Stainless steel tube Ceramic end Measures Insertion Approx. 0.19"dia. x 4"L Imported.