Feature: Large Colored LCD: Features a brilliant 5-inch LCD to display time, weather forecast, and much useful information in large digits. Easily tell time or obtain readings from all angles or across the room. Accurate Readings: Measures indoor / outdoor temperature (-22 F to 122 F) with minimum tolerance up to 1. 8 F and humidity (20% to 95%) with minimum tolerance up to 5%. Provides animated weather forecast, minimum / maximum records, and tendency arrows for reference. Dual Alarms & Snooze: Set two alarms for you and your partner to unfold a new day. Additional snooze function allows you to sleep for extra 5 - 60 minutes before waking you up again. Battery Backup: Fully backed up by 3 AAA batteries (not included), this weather station saves all time settings during a power outage / failure. Note: the backlight stays lit only when the weather station is plugged in by the wall adapter. Specifications: Temperature range: -22 F to 122 F (-30 to 50 degC) Temperature accuracy: -30 to -20 degC: 4 degC(-22 F to -4 F: 7.2 F) -20 to 0 degC: 2 degC (-4 F to -32 F: 3.6 F) 0 to +50 degC: 1 degC (32 F to 122 F: 1.8 F) Humidity range: 20% to 90% RH (relative humidity) Humidity accuracy: 5% from 35% to 75%; 10% from 20% to 35% & 75% to 95% Power supply of weather station: 100V-120V 50Hz-60Hz / 4.5V 0.15A (adapter is included) or 3 x AAA batteries (not included) Power supply of outdoor sensor: 2 x AA batteries (not included) Voltage: 220V 50Hz EU Voltage: 120V 60Hz US includes:1 x Wireless Weather Station 1 x Outdoor Sensor 1 x DC Adapter