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. Features: Large backlit LCD display unit 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 Measures temperature 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 Battery 2 x AA size 1.5V batteries (not included) Support channels wireless sensor (Rain gauge, thermo sensor) Dimensions: 155(H) x 95(W) x 23(D)mm Weight: 212g Specifications Height : 155mm Width : 95mm Depth : 23mm Weight : 0.37kg Weather Station Style : Weather Station Storm Warning : false Touch Screen : false Calender : false Wind Chill : false Dew Point : false Outdoor / Exterior Scale : -40°C Outdoor / Exterior Scale : -40°F, 140°F Indoor / Interior Scale : -10°C Indoor / Interior Scale : 14°F, 122°F Celcius Accuracy : +/- 1°C Measures in Celcius : true Measures in Fahrenheit : true Measures in Kelvin : false Thermometer Resolution : 1°C Relative Humidity : true Absolute Humidity : false Sensor Type : Rocker Collector (Continuous Flow) Maximum Rainfall Reading : 29999mm Manual Reset : true Sample Time : 12sec Data Storage Internal : true Data Storage External : false Data Transfer : false Display Type : LCD Display Backlight : Not Backlit Bargraph : true Size / Shape : AA Battery quantity : 2pc Battery used for : Main Product Batteries included : false Batteries can be replaced by user : true Compartment location : Back How is battery compartment kept closed : Clip Records Minimum : true Records Maximum : true Data Hold : false Size / Shape : AA Battery quantity : 4pc Battery used for : Transmitter Batteries can be replaced : true Packaged Length : 25cm Packaged Width : 17.5cm Packaged Weight : 1.02kg Packaged Height : 17cm Packaged Volume : 7.44l