Weather station with rain guage

Functions:

* time display, RC for option (excl.)
* calendar function
* dual alarms and snooze function
* indoor temperature (range 0~50℃）and humidity display (25% ~ 95%)
* RF 433MHz outdoor temperature (range -25 ~ 60℃), up to 3 outdoor transmitters' receivable
* MAX/MIN memory of both indoor and outdoor temperature and humidity
* rain guage: display 1hr, 24hr, every week or all history rainfall records
* blue LED backlight