Included accessories: Outdoor sensor Power Supply Dimensions: 94 x 146 x 50 mm Other parameters: Weather forecast icon (sunny, slightly cloudy, cloudy, rainy, snowed, stormy) 12 24 hours forecast based on air pressure change Measurement of internal temperature and humidity Measurement of external temperature and humidity Black ice warning Max. / min. memory entries (option: manual reset) Indoor temperature measurement range: 0 to 50 C Outdoor temperature measurement range: -25 C to 70 C Range of humidity measurements: from 20% to 95% relative humidity Temperature display in C / F units 3 levels of display brightness: High / Low / Off Programmable automatic backlight dimming (night mode) Digital time and date display Dual alarm 12/24 hour format Color LCD display Can be placed on the table Battery discharge indicator Up to three sensors can be connected Automatic review of the displayed measurements of all three sensors 1 sensor included (SWS TH270-4270-5270) Sensor transmission frequency: 433 MHz Battery: 3 x 1.5 V AAA type (batteries not included) Main unit power adapter: DC (fixed) 5V / 600mA (supplied), power consumption: <1W Sensor battery: 2 x 1.5 V AAA type (batteries not included)