Specifications 1 Rainfall display range 0 to 19 999 mm 2 Outdoor temperature range 40 ~ 65°C 40°F to 149°F 3 Indoor temperature range 99 ~ 60°C 158°F to 176°F 4 Temperature accuracy ±10°C 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 can select in inches or mm 3 Indoor and outdoor temperature °F to °C 4 for time and date with manual setting 5 12 24 hour time mode 6 Calendar 7 for time zone setting 8 for Time Alarm 9 Standalone Package includes 1 x Rain Gauge 1 x Receiver 1 x User Manual 2 screws