Extech 407766

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Extech 407766

Extech Instruments

94/114dB Sound Calibrator

1kHz Professional Calibrator for 0.5" or 1.0" Microphones

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Description
Key features
Technical data

Description

This 1kHz 94/114dB professional sound calibrator is for 0.5 in. or 1 in. microphones. Calibrates and verifies sound level meter operation. Level position switch to select 94dB or 114dB with power on LED indicator light. Durable die-cast aluminum housing generates a 1kHz sine wave at 94dB/114dB to an accuracy of 5% (frequency) and ±0.5dB (94dB)/±1.0dB (114dB). Meets IEC standard 60942 1997-11. Comes complete with two 9V batteries, carrying case and screwdriver.

Key features

Calibrates and verifies Sound Level Meter operation
LED indicator lights up when power is on
Level position to select 94dB or 114dB
For use on Sound Level Meters with 0.5" or 1.0" microphones
Durable die-cast, aluminum housing
1kHz sine wave at 94dB/114dB is generated to an accuracy of 5% (frequency) and and ±0.5dB (94dB)/±1.0dB (114dB)

Specifications	Range	Accuracy
Frequency	1000 Hz	±5%
Sound Pressure Level	94dB/114dB	±0.5dB (94dB), ±1dB (114dB)
Distortion	<2% Total Harmonic Distortion (THD)
Operating Temperature	32 to 122°F (0 to 50°C)
Power Supply	Two Heavy duty, alkaline 9V Battery
Power consumption	Approx. 10mA DC
Dimensions	2.2" diameter x 5.6" long (50 x 127mm)
Weight	0.75 lbs. (340g)