About Product:(large quantities of buyers, or a custom logo, delivery time is not the same, please Wangwang Advisory) date, time, temperature and humidity display alarm and snooze function of collecting temperature and humidity change forecast sunny / cloudy / rainy / cloudy weather condition of four kinds of indoor and outdoor temperature and humidity machine wireless receiving and transmitting (open the distance is greater than 30 meters) for 12 hours or 24 hour format selection. Celsius or Fahrenheit conversion. Temperature and humidity maximum and minimum record query. Outdoor unit low power display. Color backlight display.