Portable Digital LCD Display Indoor Outdoor Thermometer Hygrometer Humidity Temperature Meter Probe Sensor Cable with Alarm Clock Function Large LCD Display simultaneously showing indoor outdoor temperature and indoor humidity,Selectable temperature unit:  or Outdoor Temperature range: -50 ~70, Indoor temperature range: -10~50,Resolution: 0.1, Humidity: Indoor 10% ~ 99% +-5%, Time (12/24 hrs) with daily Alarm function The memory will show the maximum or minimum temperature / humidity of the period from the last reset on the relative Powered by one AAA battery, Probe Cable Length: Approx 1.5m, Desk-top placing or wall hanging Ideal household decoration and ensure you the most desirable ambient indoor / outdoor temperature and indoor humidity