Specifications: 1) Rainfall display range: 0 to 19,999mm 2) Outdoor temperature range: -40 to +65°C (-40°F to +149°F) 3) Indoor temperature range: -9.9 to +60°C (-15.8°F to +176°F) 4) Temperature accuracy: ±1.0°C 5) Power requirements: a) Receiver: 2 x "AA" alkaline batteries (not included) b) Rain gauge: 2 x "AAA" alkaline batteries (not included) 6) Transmission range: up to 100 meters (330 feet) 7) Transmission frequency: 433MHz Features: 1) Outdoor wireless sensor (range up to 100 meters) 2) Detailed display of rainfall data for 1 hour, 24 hours, week, month, and total since last reset (user selectable in inch or mm) 3) Indoor and outdoor temperature display (Fahrenheit to Celsius) 4) Time and date with manual setting option 5) 12/24-hour time format 6) Calendar 7) Time zone setting 8) Time alarm 9) Free-standing design Package included: 1 x Rain Gauge 1 x Receiver 1 x User Manual 2 x Screws