Taylor Precision Products 91505-1 Wireless Digital Rain Gauge & Indoor/Outdoor Thermometer Base Station, Wireless Digital Rain Gauge Indoor & Radio Frequency Outdoor Thermometer, Base Station, Single Channel, 433 Mhz Wireless, 100' Transmission Range, Celsius/Fahrenheit Selectable, Auto Scroll For Readings, Minimum/Maximum Temperature Tracking, Programmable, Audible Temperature Alert With Icon, Temperature Trend Indicator, 12/24 Hour Clock, Calendar, Decline Principal Rain Measurement Technology, RF Rain Measurement Transmission Icon, Records & Displays Hourly, Daily, Weekly, Monthly Rainfall History With Automatic Daily Reset, Rain Alert Icon, Not Audible, Low Battery Indicator, 2.25"W x 2.32"H LCD Display, Waterproof Outdoor Rain Collector With Oversized Collection Area, Wide Base Minimizes Collector Tip Over, Self Emptying Rain Collector, Includes 2 Stainless Steel Screws & 2 Plastic Spikes For Deck Or Ground Mounting, 5.0"H x 3.625W x 1.0"D Base Station Dimensions, Requires 2 "AA Batteries, Not Included.