La Crosse Technology TX32U-IT Wireless Self-Emptying Rain Bucket Sensor Wireless rain bucket sensor for rainfall measurement; for use with a compatible La Crosse's 915 MHz weather system, purchased separately Self-emptying bucket with system of tilting rain cups; wireless transmission every 6 seconds at 915 MHz from up to 330 feet Measures 0 to 393.7 inches total rainfall and 0 to 39.3 inches 24-hour rainfall; requires separate purchase of 2 AAA batteries Mount at least 3 feet off ground on flat surface without overhead obstructions; mounting hardware provided Measures 5-2/3 inches wide by 2-1/6 inches deep by 3-1/2 inches high; limited manufacturer warranty