The Meade Instruments Weather Forecaster with Barometric Pressure and Atomic Clock is perfect for any weather watcher looking for function and style. This powerful little unit monitors the time, date, moon phase, 12-to-24-hour forecast, and records and charts the 24-hour barometric pressure history. Everything a weather enthusiast could ask for in one stylish package is packed in this sleek unit. You can even expand it to monitor up to three different area's temperature and humidity with the addition of two more remote sensors with 100-ft. range. Also, an included ice alarm will let you know when it's time to cover the flowers. Don't just watch the weather, monitor it with this stylish and easy-to-read weather station. Requires 2 AA type batteries for the main unit and two additional AA batteries for the sensor. Batteries not included. This item is covered under a manufacturer's limited 1-year warranty.