Measurement range is from 30dB to 130dB and automatic ranging<br />With two equivalent weighted sound pressure levels， A and C<br />Corresponsive rate select: FAST / SLOW<br />Clock and calendar function<br />Recording data in memory: 16000 data， extended up to 128000 data according to user demand<br />USB interface for connecting with computer<br />AC and DC analog signals output， which can be linked to frequency analyzer or X-Y axis recorder<br />Background light for working in the night. To save power， the background light shines for 5 seconds， then closes automatically<br />Good circuit designed to save power so that the battery can be used for a long time<br /><br />    Specifications<br />General<br />	 Brand: MASTECH                                                  <br />                        Model: MS6701                                                  <br />                        Material: Electronic Components                                                  <br />                        Type: Measuring instruments， Data Logger                                                	<br />Specification parameter<br />	 Primary functions: MASTECH MS6701 digital sound level meter                                                  <br />                        Features: With Clock and Calendar Function / USB interface                                                  <br />                        Scope of application: Industrial， Home appliance， Office， Agricultural                                                	<br />Weight and Size<br />	 Product Weight: 0.317 kg                                                  <br />                        Package Weight: 0.920 kg                                                  <br />                        Product Size: 26.5 x 8.0 x 6.9 cm / 10.41 x 3.14 x 2.71 inches                                                  <br />                        Package Size: 30.0 x 7.0 x 8.2 cm / 11.79 x 2.75 x 3.22 inches                                                	<br />Package Contents<br />	 Package Contents: 1 x MS6701 Sound Level Meter， 1 x Earphone Plug， 1 x Computer RS-232 Cable， 1 x English User Manual， 3 x 1.5V Battery                                                	<br /><br /><br /><br />                                                                                            <br />