Display 29mm height LCD digit
Display temperature in either Fahrenheit or Celsuis
Environment data display, clock and calendar display
Sharp time warning and daily alarm
Simultaneous display of indoor and outdoor temperature
Outdoor cable length 2m
MAX/MIN temperature, humidity record
Accessories included: 1.5V battery, English manual, full blister

SPECIFICATIONS
Temperature outside sensor measurement range        -20℃~70℃(-4 oF~122 oF)
Temperature outside sensor measurement accuracy      ±2℃(3.6 oF)
Temperature inside sensor measurement range          -10℃~50℃(14 oF~140 oF)
Temperature inside sensor measurement accuracy      ±1℃(1.8 oF)
Temperature measuring resolution          0.1℃(0.2 oF)
Relative humidity measuring range             15%-95%RH
Relative humidity measuring accuracy       ±5%
Dimensions                              110x100x21mm
Weight                                  Approx. 80g included battery

When the LCD display is blurry, replace the battery with new one.
Hand over or send the meter to local dealer or qualified department for checking if any malfunction happens.