Dual displays: Jumbo 3-1/2-digit backlit LCDand analog bar graph
Background noise filter
A or C frequency weighting
Fast or slow time weighting
Manual or auto ranging
Min/Max memory + max hold
AC and DC and RS-232 output jacks
1/4 in. (6mm) electret condenser microphone
Auto power off
CE and RoHS approved
Specifications :
Measurement Range: 30 to 130 dB over sixrangesMeasurement Accuracy: ±1.5 dBMeasurement Frequency Range: 31.5 to 8000 HzResolution: 0.1 dB for LCD, 1 dB for bar graphResponse Time: 0.5 seconds for LCD, 50 ms forbar graphDimensions:11 x 3 x 1.5 in. (279 x 76 x 38mm)Weight: 10.3 oz. (292g)Power Source: 1 ?9V? battery (included) Includes :