These compact weather stations display the indoor and outdoor temperature (-20 to +60°C), humidity (% RH), barometric weather forecast (symbols) and the date and the real time. The unit also incorporates dual alarms and a snooze function. Each weather station is supplied with one outdoor temperature and humidity sensor which transmits the data via RF (radio frequency - wireless) that can be placed up to 30 metres (100 feet) away in an open area. Both weather stations will accommodate an optional extra sensor. The dimensions of the outside sensors are 25 x 64 x 95mm. The weather stations also indicate the moon cycle, the maximum and minimum and a trend indicator for temperature and humidity (in and out). The clear LCD display incorporates a backlight that turns itself off automatically after five seconds.