Display:  3 1/2-digit LCD, with a max. reading of 1999
Negative Polarity Indication:  Negative sign " - " shown on the display automatically
Overrange Indication:    Only figure " 1 " shown on the display
Sampling Rate:    About 2 to 3 times/sec
Battery:   1.5V button cell, LR44 or equivalent, 2 pieces 
Low Battery Indication:    " * " shown on the display
Operation Environment:    Temperature:  0°C to40°C
Relative Humidity:  < 75%
Storage Temperature:    Temperature:  -10°C to 50°C
                                      Relative Humidity:  < 85%
Size:  114×56×23mm
Weight:  about 101g ( including button cell )