Extech's Big Digit Thermometer displays indoor and outdoor temperatures concurrently, as well as a user-programmable High and Low alert for outdoor (external probe) temperature. Its wired exterior weatherproof probe, which includes a 9.6ft (3m) thin cable, can be easily inserted through windows, doors, or any other small aperture leading to the outdoors or inside a refrigerator/freezer or temperature-controlled areas/rooms. Internal memory stores minimum and maximum measurements throughout time. Thermometer comes with a built-in desktop stand and a wall mounting bracket.