La Crosse WS7038UF Wireless Rain Gauge
"Receives rain data from remote rain gauge Includes TX5U remote rain gauge Stores history of rainfall Accumulated rainfall until manual reset Rainfall for past 24 hours Rainfall for past 1 hour Rainfall for last rain period Graph of historical rainfall View last seven days, weeks, or months on graph Scroll through period by period on graph Rain alarm function notifies of rain Rainfall transmitter self-empties via tipping bucket Measures 1/100th of an inch per tip Wall Hanging or Free-standing removable stand Manual set time and date 12 or 24 hour time mode Rainfall measuring: Tipping bucket, 0.0105 /tip Rainfall accuracy: +/- 0.02 +/-3% Rainfall range: 0.01 to 999.99 total Power requirements receiver : 2 AAA Alkaline batteries not included Power requirements remote sensor : 2 AA Alkaline batteries not included Transmission Frequency: 433.92 MHz Transmission Range: Up to 80 feet open air"