Extech 407750 Sound Level Meter with PC Interface

by Extech
Extech 407750 Sound Level Meter with PC Interface
407750: Sound Level Meter with PC Interface
Big backlit display, PC interface & background sound absorber


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

- Machine noise evaluation
- OSHA compliance testing
- Community noise measurement
- Noise ordinance
- PC interface for data collection


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)