Monitor important environmental conditions with the AcuRite 5-in-1 Weather Station with Lightning Detection. It comes with an AcuRite 5-in-1 Weather Sensor and Lightning Detector Sensor. You can also add up to two indoor or outdoor temperature and humidity sensors (sold separately). The illuminated color weather station display measures indoor conditions and shows all the vital rainfall, wind, lightning detection, temperature, humidity, and barometric pressure information you need. Beneath the main display, AcuRite?s exclusive Weather Ticker streams real-time information and alerts. One-year limited warranty. It's more than accurate, it's AcuRite.