Features

• Calibrates and verifies Sound Level Meter operation
• 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
• 3 position switch (OFF/94dB/114dB)
• Total Harmonic Distortion (THD) <2% at 94dB
• Complete with two 9 V batteries, carrying case, and screwdriver
• Battery test position with battery status LED indicates if battery is good

Specifications / Range / Accuracy

• Frequency / 1000Hz / +/-5%
• Sound Pressure Level / 94dB (407744); 94dB/114dB (407766) / +/-0.5dB (94dB), +/-dB (114dB)
• Distortion : <2% Total Harmonic Distortion (THD)
• Operating Temperature: 32 to 122deg.F (0 to 50deg.C)
• Power Supply: Two Heaey duty, alkaline 9 V battery
• Power Consumption: Approx. 10mA DC
• Dimensions: 2.2" diameter x 5.6" long (50x 127mm)
• Weight: 0.75lbs. (340g)