Item No.: C25A045
.1.5 inch LCD screen without backlighting  
.Frequency range: 31.5 Hz ~ 4kHz  
.Measuring level range: 30 ~ 130dB  
.Accuracy: ± 3.5 dB   
.Resolution: 0.1 dB  
.Time control: rapid response (125mS)  
.Sound level frequency meter power: A   
.Microphone: 1/2-inch polarized capacitive microphone  
.Alarm function: display when the input exceeds the range‘OL"  
.Automatic shutdown: automatic shutdown after 15 minutes without any operation  
.Battery:9V carbon battery  
.Dimension:170*58*35mm   
.Weight:107g  
.Certificate:CE