The anemometer measures wind speed and the wind vane measures wind direction. The outdoor PRO+ Integrated Multi-Sensor is completely wireless and contains a self-emptying rain collector for measuring rainfall, temperature/humidity sensor, anemometer and wind vane. Weather Underground is one of the most popular weather networks in the world! No wires or confusing software required. The AcuRite 01540M may be used as a stand-alone weather station or you may connect the LCD color display via a Wi-Fi router (router not included) to wirelessly transmit your weather data to Weather Underground. Concerned when weather conditions fall below or rise above a pre-defined range? The AcuRite 01540M display has got you covered with programmable audible alarms that may be set for many measurable conditions. The LCD color display includes indoor/outdoor temperature and humidity, feels like temperature, heat index, dew point, barometric pressure, wind speed/direction and more.

Self-Calibrating Forecasting is generated from weather data measured by a sensor in your yard - giving you the most accurate forecast available for your exact location.

The AcuRite 01540M PRO+ Complete Wireless Color Weather Station uses patented Self-Calibrating Technology to provide a personal forecast of 12 to 24-hour weather conditions.

Acurite wunderground