High Quality NEW!!! Dimensions: 15.4 x 15.2 x 1.8 cm Weight: 120 g Batteries Required: 4 x AAA (1.5V) °F/°C switchable Min/Max memory Indoor/Outdoor temperature (-35°C to 70°C / -31°F to 158°F Receives temperature data from up to 25m/82ft from the outdoor sensor Multiple sensor capability allows you to monitor temperatures from up to 3 sensors Displays temperature trend Displays current indoor & outdoor temperature