About this item ✨ Bluetooth version 4.2 Plastic base metal stainless steel probe ► Food temperature measurement range: 0-100. Measuring range of furnace temperature: 0-300. ► 100ft Range Model:100 percent WIRE-FREE that's perfect for outdoor cooking. In open area (without any obstructions), it has 131ft or 40cm Bluetooth range. You can monitor your cooking by using the FREE app,Grill ProbeE, which is available for iOS or Android smart phones. ► Fast-charging:It only takes about 10 minutes on charging, and you can use it for 4 hours! ► Guided Cook System:Walks you through every step of the cooking process to guarantee perfect and consistent results. You can also set up custom alerts or notifications based on temperature and or or time. ► Advanced Estimator Algorithm:Can estimate how long to cook and rest your food to help plan your meal and manage your time. ► Expandable to 3 Additional Probes:The APP can monitor 4 probes at the same time. ✨ Upgrade Bluetooth version 5.2 Bamboo and wood base, metal stainless steel probe, color paper box packaging. ► Food temperature measurement range: - 40-100. Measuring range of furnace temperature: 0-320 ► Range model: In an open area (without any obstacles), it has a Bluetooth range transmission distance of 164 feet or 50 cm ► Mobile APP can monitor the barbecue temperature of 6 probes at the same time ► Probe stainless steel structure: waterproof grade IP67 ► 20 minute quick charge for 6 hours