"Get a complete picture of the conditions in and around your home with the AcuRite Wireless Thermometer. This AcuRite weather station displays indoor temperature and humidity for the area in which it's displayed, and the weather-resistant sensor monitors indoor or outdoor temperature and humidity in a second location you can view on the station's screen. The easy-to-read LCD can cycle through different readings automatically or manually, while buttons on the back provide effortless control. 165' wireless range. The weather station requires 2 AAA batteries, and sensor requires 2 AA batteries (none included). Display can be placed on a tabletop or hung on a wall. The AcuRite Wireless Thermometer includes a digital display, wireless sensor, and instruction manual. 4.8""H x 1.6""W x .9""D. Mfrs. 1-year limited warranty. Manufacturer model #: 02097M. Monitor temperature and humidity in 2 locations Weather station displays indoor temperature and humidity in 1 spot Weather-resistant sensor monitors indoor or outdoor temperature and humidity in another spot Easy-to-reach LCD cycles through readings automatically or manually Buttons on the back give you easy control over settings 165' wireless range"