Basic Character:                              
·Two-tier LCD display                         
·Operating voltage:1.5V(LR44)
·Max/Min temperature records  
·In/Outdoor temperature measure and indoor          
·Measuring temperature range:
indoor:-20℃～70℃
outdoor: -50℃～70℃
·Freeze alert                                  
·Deg ℃/℉swithcable                  
·Accuracy:±1 ℃,                              
·Display resolution:0.1℃
*Use of the environment:-10~+50C