AcuRite 01089M Rain Gauge with Thermometer & Humidity Self-emptying rain collector measures rainfall in your backyard and wirelessly transmits readings to an indoor digital display (100-foot; 30 meter range) Wireless all-weather temperature and humidity sensor measures outdoor conditions with precision and accuracy (330-foot; 100-meter range) Rainfall totals for current day, previous day, current week, month, year and previous year (inches or millimeters) Oncoming Storm alert, plus programmable rain alarm to warn when Flood conditions may be present or when to turn off the sprinklers Other features include intelli-time clock, indoor temperature and humidity with all-time high and low records plus timestamp