Usage Tips:Features: 1).outdoor wireless sensor (range up to 100 meter) 2) Detail display of rainfall data in 1hour, 24hour, week, month and total since last reset(user selectable in inch or mm) 3) Indoor and outdoor temperature (F to C), and date with manual setting option 4) 12 /24 hour mode, Calendar 5) zone setting, alarm, Free standing : 1) Rainfall display range: 0 to 19,999mm 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 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: 433MHz Material: plastic colour: As shown Package Contents: 1 x Rain Gauge 1 x Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.