This wireless rain gauge collects the following rainfall data: total rainfall, rainfall in 1 hour, rainfall in 24 hours and amount since last rainfall. It even provides a rainfall history bar chart. Shows date and month along with 12 or 24 hour clock. Rain gauge self empties with tilting cups. Remote rain sensor transmits up to 80 feet to the receiver. Rainfall accuracy is ±0.01 inch with cumulative rainfall total up to 999.99 inches. Operates up to 18 months on two "AAA" batteries for the receiver and two "AA" batteries for the rain sensor (batteries not included). Can be used free standing or mounted on a wall. Imported.