La Crosse Technology Combo8-IT Wireless Weather Combo 8 Pack Wireless weather station combo; includes WS-7013U temperature station, WS-7394U forecast station, and remote TX29U temperature sensor Wall-mount or stand-alone; LCD receivers relate date, 12/24-hour time, and indoor/outdoor temperatures (F/C) with MIN/MAX recordings Additional forecast unit features: atomic clock, indoor humidity, indoor comfort icon, air pressure history, tendency arrow, and forecast icons Sensor transmits to both units at 915 MHz from up to 330 feet unobstructed; wireless system accommodates up to 3 remote sensors Requires separate purchase of 4 AA and 2 AAA batteries; limited 1-year warranty