Know how much rain you got overnight with this La Crosse Technology Rain Gauge. Numeric measurements are monitored on the indoor base, including historical data and a cylinder rain graph. This wireless rain gauge has a wide-mouth that self-empties from the collection rocker and transmits up to 300' (91m.) With adjustable settings, you can personalize it to your liking. This La Crosse Technology Plastic Black Digital Rain Gauge with Indoor Temperature also lets you know how much rain you have received during several periods of time that range up to the past 12 months. There is even an indicator that lets you know when the battery is running low on power.