Digital Indoor/Outdoor thermo & hygrometer & colock
1. it can measure indoor/outdoor temperature and indoor humidity;
2.time /date
3.alarm set
4.-1~4C freeze alert
5.max and min temperature and humidity memory
6.C and F switch
7.measure range:
  T: indoor:-10~50C（14~122F）
     outdoor:-50~70C(-58~158F)
  H:20~99%
8.precision:T:+/-1C（+/-2F） H:+/-5%      
9.Voltage:1.5V(AAA 1 pcs)
10.outdoor sensor length:2m
11.Use of the environment:-10~+50C