WAQAS GROUP

Extech 407750 Sound Level Meter with PC Interface original extech brand price in Pakistan 

Big backlit display, PC interface & background sound absorber

The 407750 Sound Level Meter with PC Interface has a large backlit display, PC Interface and background sound absorber for noise measurements with high ambient noise levels. It features A/C Weighting, fast/slow response time, Min/Max, and analog AC/DC outputs for connection to a recorder. Complete with microphone wind screen, 9V battery and case.

• Meets ANSI & IEC 651 Type 2 standards
• Background noise absorber for machine noise measurements filters ambient noise
• 30 to 130dB measurement range with ±1.5dB accuracy
• Large display with backlighting and analog bargraph
• MIN/MAX, Auto/Manual Ranging
• Analog AC/DC outputs for connection to a recorder
• RS-232 interface for capturing data directly on a PC
• Tripod mount ideal for field use

Specifications                                                    Range
Digital Display                                           3-1/2 digit (1999 count) Autorange LCD
Bargraph Display                                      50dB display range (1dB resolution);
Measurement Range                               30 to 130dB (35 to 130dB for “C” weighting)
Resolution                                                 0.1dB
Accuracy                                                   ±1.5 dB @ 94dB for a 1kHz sine wave
Microphone                                             Electret Condensor .24"(6mm dia.) type
Frequency Weighting                            “A” and “C” type
Time Response                                        Slow/Fast
Sampling time                                          updates every 0.5seconds
Measurement frequency range           31.5Hz to 8KHz
Analog output                                          AC: 0.707Vrms (full scale); DC: 10mVDC/dB
Applicable Standards                             IEC 651 Type 2, ANSI S1.4 Type 2
Power Supply                                          9V battery , optional AC adaptor
Dimensions                                             10 x 3.1 x 1.5"(256 x 80 x 38mm)
Weight                                                      8.5oz. (240g)