It measures indoor-outdoor temperature and humidity.

·Two-tier LCD display                
·Temperature measuring range:-50oC--+70oC(-58oF--158oF)
·Moisture measuring range:10%--99%RH
·oC\ oFconversion                              

·Display resolving :0.1oC,1%RH
·Max/Min temperature and moisture display                                
·Accuracy:±1oC, ±5%
·Time display,date display;
·Time-Alarming function
·Temperature sampling period:10s
·1.5V operate