This DURAC® weather station comes with a 433MHz RF remote sensor. Features a dual scale thermometer with indoor and outdoor temperature readings and 0.1° resolution. Weather station also has maximum/minimum memory, temperature alert, clock with snooze alarm, and calendar with day of week. Weather station features one internal sensor and can link up to three remote sensors (one is included). CE mark and RoHS compliant. Each item is individually packaged in recyclable packaging with multi-language instructions (English, French, German, Italian, Portuguese, and Spanish). Includes two AA main unit batteries and three AAA sensor batteries. Indoor Range: 0 To 50°C (32 To 122°F). Outdoor Range: 50 To 70°C (-58 To 158°F). Accuracy: 1°C; 2°C From 0 to 5°C and 41 to 50°C. Dimensions (WxH): 76mm x 190mm (3 x 7.5in).