Specification: Product material: ABS Weather station size: 16 x 10 x 4.5cm / 6.29 x 3.94 x 1.77in Sensor size: 10.5 x 5 x 2.6cm / 4.13 x 1.97 x 1.02in Transmission distance: 60m / 196.85ft (open area) (weather station) Product color: Black White (Optional) Power supply: Weather station - 3*1.5V AAA batteries (NOT Included) or 5V 2.5A adapter sensor - 2*1.5V AAA batteries (NOT Included) Power: Weather station - 12.5W max sensor - 0.075W max. Electric current: Weather station - 2.5A max sensor - 25mA max. Low battery reminder: Weather station - 3.6V(when using battery power) sensor - 2.5V Language: English German French Spanish Italian Dubai Danish Backlight time: 15s 4-level brightness Air pressure accuracy: ±5hPa Atmospheric pressure detection range: 600 hPa/mb - 1100 hPa/mb / 17.72 inHg - 32.50 inHg Display resolution: 1 hPa/mb / 0.01 inHg Temperature accuracy: 0-40°C - ±1°C other range - ±2°C Indoor temperature detection range: -9.9°C - 50°C / -49.82°F - 122°F Display resolution: 0.1°C/°F Outdoor temperature detection range: -40°C - 60°C / -104°F - 140°F Display resolution: 0.1°C/°F Humidity accuracy: 40%-80%RH - ±5%RH other range - ±8%RH Indoor humidity detection range: 20%RH-95%RH Display resolution: 1%RH Outdoor humidity detection range: 20%RH-95%RH Display resolution: 1%RH Alarm decibel: 70dB (10cm / 3.94in is facing the weather station) Sensor: 433MHz ASK reception 3CH Plug type: 110V US plug 220V EU plug 220V UK plug (Optional) Packing List: 1 x Weather Station 1 x Sensor 1 x Adapter 1 x User Manual