Extech 407744 2 Sound Level Meter

The FLIR Sound Level Calibrator is a professional device designed to calibrate and verify the operation of Sound Level Meters with 0.5 inch or 1.0 inch microphones. It is complete with two 9V batteries, a carrying case, and a screwdriver, meeting the IEC standard 60942 1997-11.

• Calibrates and verifies Sound Level Meter operation
• 1kHz sine wave at 94dB with frequency accuracy of 5%
• Total Harmonic Distortion (THD) less than 2% at 94dB
• Battery test position with status LED for battery verification
• Durable die-cast aluminum housing for long-lasting use