Package contents: 1 rain gauge, 1 receiver, 1 user manual, 2 screws.Rainfall display range: 019,999 mm Outdoor temperature range: 40 ~ +65C (40F ~ +149F) Indoor temperature range: 9.9 ~ +60C (15.8F ~ +176F) Temperature Accuracy: 1.0C Power Requirements: Receiver: 2 inchAAinch alkaline batteries (not included) andnbsp; Rain gauge: 2 inchAAAinch alkaline batteries (not included) Transmission range: up to 100 meters (330 feet) Transmission frequency: 433 MHz Time and date with manual setting option 12/24 hour mode for indoor and outdoor temperature; Detailed display of rainfall data for 1 hour, 24 hours, weeks, months and totals since last reset (choice of inches or millimeters); Precipitation range: 0 to 19,999 mm, outdoor temperature range: 40 to +65C (40F to 149F), indoor temperature range: 9.9 to +60C (15.8F to +176C) F), temperature accuracy: 1.0C. Wireless transmission of outdoor temperature and precipitation, with a thermometer to measure indoor and outdoor temperature;