This Digital Rain Gauge with Temperature has a wireless self-emptying rain collector for measuring rain fall and temperature. The wireless rain collector sensor transmits data by using a low power radio frequency to the display main unit that can be located up to 150m away (line of sight). The display unit stores the data over a time range to allow you to monitor and analyse the weather status for past 24 hours. It has advance features such as the HI/LO Alert alarm to alert you while the set high or low weather criteria are met. The system also analyse rainfall in terms of rain rate, hourly, daily, weekly, monthly and yearly records for your convenience. With Radio-controlled / Atomic clock feature built-in, the system is truly a remarkable personal but professional rain gauge for your own backyard. Total Hourly, Daily, Weekly, Monthly and Yearly rainfall display Data logger stores and gathered data to display rainfall Graphical histogram display to show variation of rainfall pattern SINCE function to display TOTAL rainfall from a customised date Real time clock display with Atomic Radio Controlled function 150 m sensor transmission range Data retention storage even during batteries changes High / Low Alert function Alarm function with ice-alert function Sample Time : 12.0sec Data Storage Internal : true Data Storage External : false Data Transfer : false Relative Humidity : true Absolute Humidity : false Sensor Type : Rocker Collector (Continuous Flow) Maximum Rainfall Reading : 29999.0mm Manual Reset : true Measures in Celcius : true Outdoor / Exterior Scale : -40.000000 degrees Celsius Indoor / Interior Scale : -10.000000 degrees Celsius Celcius Accuracy : +/- 1 degrees Celsius Measures in Fahrenheit : true Outdoor / Exterior Scale : -40.000000 degreesF, 140.0 degreesF Indoor / Interior Scale : 14.0 degreesF, 122.0 degreesF Thermometer Resolution : 1.0 degrees Celsius Measures in Kelvin : false Records Minimum : true Records Maximum : true Data Hold : false Display Type : LCD Display Backlight : Not Backlit Bargraph : true Width : 95.0mm Height : 155.0mm Depth : 23.0mm Weight : 0.372kg Disposable battery required to power : Main Product Battery type : AA Battery Quantity : 2.0pc Are batteries included : false Batteries can be replaced : true Battery compartment location : Back How is battery compartment kept closed : Clip Battery type : AA Battery Pack Quantity : 4.0pc Battery used for : Transmitter Batteries can be replaced : true Weather Station Style : Weather Station Storm Warning : false Touch Screen : false Calender : false Wind Chill : false Dew Point : false