Extech 407766 Sound Level Meter Calibrator, 94/114dB

The Extech 407766 is a 1kHz Professional Calibrator for 0.5" or 1.0" Microphones

• 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 ±0.8dB (114dB)
• Includes screwdriver, two 9V batteries, and carrying case

Calibrates and verifies Sound Level Meter operation

• Frequency: 1000 Hz, ±5% Accuracy
• Sound Pressure Level: 94dB/114 dB/ ±0.5dB (94dB), ±1dB (114dB) Accuracy
• 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)

• Extech 407744 Data Sheet.pdf
• Extech 407766 User’s Manual.pdf