Feelle LCD Display Indoor Humidity Monitor Temperature Sensor Hygrometer with Alarm Clock Funtion Low battery indicator,economical way to monitor indoor or outdoor temperature and humidity FeaturesIndoor temperature (F or C), home comfort Icon,the blue LCD let you see even in darkness Displays temperature, humidity and time simulatenously More than a hygrometer, even an alarm clock with date and time If used outdoors, please place under protected area such as a covered porch.