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% WIRE-FREE that's perfect for outdoor cooking. In open area (without any obstructions), it has 131ft /40cm Bluetooth range. You can monitor your cooking by using the FREE app,Grill ProbeE, which is available for iOS / 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 / notifications based on temperature and/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/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