Gardeners, sailors, skiers and other outdoor enthusiasts will love this intelligent weather station. Four weather icons and a weather tendency indicator help you predict snow, rain, frost, wind and more. Also records min/max temperature and humidity with time and date and 12-hour barometric history. IT (Instant Transmission) technology ensures highly accurate data transmissions from sensors placed up to 330' away. Eight LCD contrast adjustments. Accepts up to three sensors (one sensor is included). Base station can be free standing or wall mounted. Station is powered by three AA batteries, sensor by two AA batteries (sold separately). Records min/max temperature and humidity with time and date Records 12-hour barometric history Highly accurate IT technology Receives data transmissions from sensors up to 330' away Eight LCD contrast adjustments Accepts up to three TX28U-IT Sensors (one included) Station and sensors use AA batteries, not included Base station is 4-3/4" W x 7-3/8" H Can be freestanding on a table or wall mounted Sensor is 1-3/4" W x 1" D x 6-1/2' H AA Batteries for station and sensors sold separately La Crosse's wireless weather instruments with 915 MHz Instant Transmission (IT-915) technology have the longest transmission distance at 330 feet No long waits for updates—IT-915 wireless instruments receive data every 4-16 seconds IT-915 allows for temperature measurement down to -40?? F and battery life of 18 months IT-915 does not interfere with mobile phones or other wireless household instruments