Integrating Sound Level Meter Leq and SEL measurements with built-in datalogger and PC interface With built-in datalogger and PC interface Features: * 4 Digit multifunction LCD with analog bargraph * Precise linearity over wide range (100dB) * Display modes: SPL, SEL, MAX-L/MIN-L, and Leq * Programmable integrating time * A and C Frequency weighting * Impulse/Fast/Slow response settings * Datalogging function records up to 32,000 records * Real time calendar/clock * Built-in RS-232 interface with included Windows(R) datalogging software * Tripod mount * Meets IEC 651/804 Type 2 and ANSI S1.4 Type 2 specifications * Complete with windscreen, adjustment screwdriver, RS-232 cable, 9 to 25 pin gender changer, WindowsTM software, battery, and case Applications: * Perform Leq and SEL measurements * OSHA compliance Testing * Noise Ordinance * Machine Noise Evaluation * Data Storage for pertinent records Windows(R) datalogging software included Ordering Information: 407780 ................Integrating Sound Level Datalogger 407780-NIST ......407780 with Calibration Traceable to NIST. 407766 ................94/114 dB Calibrator for 0.5" or 1" microphones 40705X ................Insulated recorder cable 3' for AC/DC Outputs 144118 ................110V AC Adaptor 144220 ................220V AC Adaptor 144240 ................240V AC Adaptor 407764-EXT ........6' (183cm) Microphone Extension Cable www.extech.com Specifications Applicable Standards IEC 651 And 804 Type 2, ANSI S1.4 Type 2 Accuracy 1.5dB (ref 94dB@1KHz) Resolution 0.1dB Digital Display 4 digital LCD Measurement Parameters SPL, Leq, SEL, MaxL, MinL Measurement Range 30dB to 130dB Linearity Range 100dB Measurement Frequency Range 31.5Hz to 8KHz Frequency Weighting A and C Response Impulse, Fast and Slow Microphone 1/2 " Electret condenser microphone Sampling time updated every 0.5s Bargraph 4dB steps, 100dB range, 100ms update Display Warning Function Overrange Indicator Displayed at the upper limit Underrange Indicator Displayed at the lower limit Analog AC/DC Output 2Vrms (at full scale), 10mVDC/dB Power Supply Four 1.5V AA batteries, Optional AC adapter Battery Life Approximately 20 hours Dimensions 10.4x2.8x0.8" (265x72x21mm) Weight 10.9oz (310g) Specifications subject to change without notice. 10/7/11 - R1 Copyright (c) 2008-2011 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.