Indoor & outdoor temperature display, indoor humidity display 
Memory of MAX/MIN value of temperature & humidity Clock & date display function, automatic exchanging in 5 seconds between clcock & date 
Humidity Measurement range: 10%RH-99%RH Alarm Clock and Calendar function 
Maximum Minimum Temperature and humidity memory function Need 1 AAA battery, provided with the product 
Pointing function on each hour 
Large-character LCD display Multi-function Low power consumption