Specifications:1) Rainfall display range: 0 to 19,999mm2) Outdoor temperature range: -40 ~ +65C (-40F to +149F)3) Indoor temperature range: -9.9 ~ +60C (-15.8F to +176F)4) Temperature accuracy: 1.0C5) 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 100meters( 330feet)7) Transmission frequency: 433MHzFeatures:1).outdoor wireless sensor (range up to 100 meter)2) Detail display of rainfall data in 1hour, 24hour, week, monthand total since last reset(user selectable in inch or mm)3) Indoor and outdoor temperature (F to C)4) Time and date with manual setting option5) 12 /24 hour time mode6) Calendar7) Time zone setting8) Time alarm9) Free standingPackage included:1 x Rain Gauge1 x Receiver1 x User Manual2 Pieces of Screws