Extech 407764 Datalogging Sound Level Meter

by Extech
Extech 407764 Datalogging Sound Level Meter
407764: Datalogging Sound Level Meter
Type 2 meter with datalogging memory for 128,000 records plus PC interface and software


Meets ANSI and IEC 651 Type 2 standards
30 to 130dB measurement range with +/-1.5dB accuracy
Large LCD with Fast 50 segment bargraph display
Stored data can be transferred to a PC via RS-232 interface
Real time and Date are logged with data; Max Hold function
Tripod mount ideal for field use

- Monitor office or plant noise and store data
for later reference and analysis
- Maintain noise level statistics for internal
and external audits
- Perform machinery noise monitoring
or use for noise reduction programs
- Store data for error free community noise monitoring


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)