1.The FJ3373 multifunctional digital weather clock can display weather forecast, moon phase and ordinary digital clock/calendar/alarm clock function. Perpetual calendar up to the year 2099; Day of the week in 7 languages user selectable: English, German, Italian, French, Spanish, Dutch and Danish; Time in optional 12/24 hour format. 2.In addition, the FJ3373 is equipped with a wireless temperature and humidity sensor that can display indoor and outdoor temperature, humidity data and barometric pressure trend. Outdoor high/low temperature and frost alert. 3.Comfort display: The indoor comfort level is calculated based on the indoor temperature and humidity, a total of 5 levels. 4.Wireless Outdoor Sensor: Two modes of wall-mounted and stent installation, 433.92MHz RF transmission frequency, 60 meters transmission in an open area. 5.Through-the-wall RF technology: Place the outdoor sensor outdoors to connect the data and transmit it to the main station.