Item No.: C25A040
.1-4/5" LCD screen  
.Measuring range：30~130 dBA  
.Accuracy：±1.5 dB  
.Resolution：0.1dB  
.Frequency response：31.5Hz ~8KHz  
.Frequency weighting characteristic：A   
.Sampling rate：2 times/second  
.Microphone：polarization capacitance microphone  
.Data hold function  
.Max/Min reading  
.Low battery indication  
.Power：1.5V AAA  battery* 3pcs   
.Dimension：50*33*159.5mm  
.Weight：84.8g (with battery)  
.With CE、FCC、RoHS certification