407730 Datasheet, PDF (5/6 Pages) Extech Instruments Corporation. – Digital Sound Level Meter

Specifications
Display
Microphone
Measurement Bandwidth
Measurement Range
Frequency weighting
Accuracy / Resolution
Response time
Calibration source
AC output
Power
Battery life
Automatic power off
Operating temperature
Operating humidity
Storage temperature
Dimensions/weight
LCD with bargraph
0.5” (10mm) Electret condensor
300Hz to 8KHz
40 to 130dB (A wtg), 45 to 130dB (C wtg)
‘A’ and ‘C’ (selectable)
± 2dB @1kHz (under reference conditions) / 0.1dB
Fast: 125 milliseconds / Slow: 1 second
1KHz sine wave @ 94 or 114dB
0.707Vrms full scale
4 AAA Batteries
30 hours (typical); low battery indicator alerts user
After approx. 20 minutes
32 to 122^oF (0 to 50^oC)
10 to 90% RH
-4 to 140^oF (-20 to 60^oC)
9 x 2.3 x 1.7” (230 x 57 x 44mm) / 6oz (172g)
Warranty
EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects
in parts and workmanship for one year from date of shipment (a six month limited warranty
applies to sensors and cables). If it should become necessary to return the instrument for
service during or beyond the warranty period, contact the Customer Service Department at
[phone] ext. 210 for authorization or visit our website www.extech.com for contact
information. A Return Authorization (RA) number must be issued before any product is
returned to Extech. The sender is responsible for shipping charges, freight, insurance and
proper packaging to prevent damage in transit. This warranty does not apply to defects
resulting from action of the user such as misuse, improper wiring, operation outside of
specification, improper maintenance or repair, or unauthorized modification. Extech
specifically disclaims any implied warranties or merchantability or fitness for a specific
purpose and will not be liable for any direct, indirect, incidental or consequential damages.
Extech's total liability is limited to repair or replacement of the product. The warranty set
forth above is inclusive and no other warranty, whether written or oral, is expressed or
implied.
Calibration and Repair Services
Extech offers repair and calibration services for the products we sell. Extech also
provides NIST certification for most products. Call the Customer Service Department for
information on calibration services available for this product. Extech recommends that
annual calibrations be performed to verify meter performance and accuracy.
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Model 407730 Version 1.4 April 2006