Specifications: 1) Rainfall display range: 0 to 19,999 mm 2) Outdoor temperature range: -40 ~ +65C [-40F to +149F) 3) Indoor temperature range: -9.9 ~ +60C [ -15 .8F to +176F) 4) Temperature accuracy: 1.0C 5) Power : 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) wireless outdoor sensor [range up to 100 meters) 2) Detailed display of precipitation data for 1 hour, 24 hours, week, month and total since last reset [user selectable in inches or mm) 3) Indoor and outdoor temperature [F to C) 4) for time and date with manual setting 5) 12/24 hours for time mode 6) Calendar 7 ) for time zone setting 8) for Time Alarm<br> 9) Standalone Package Includes: 1 x Rain Gauge 1 x Receiver 1 x User Manual 2 Pieces Screws We not only provide you with high quality products, but more importantly, we give you a long-term after-sales warranty. When you buy our products, you get comprehensive after-sales support, so you can shop with confidence and satisfaction.