Wireless, self-emptying bucket. Shows total rain and rainfall for the last 24 hours. User set rainfall alarm from .05 to 4 in. over 24 hours; Current rainfall indicator; light rain and heavy rain indicators; Remote sensor range: up to 330 ft.; Receiver and sensor both use (2) AAA alkalines. Dim: 2.35?w x 3.85?h x 0.83?d.