Features

• Calibrates adn 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 9V batteries, arrying case, and screwdriver
• LED indicator lights sup when power is on
• Level position to select 94dB or 114dB

Specifications: Range / Accuracy

• Frequency: 1000Hz / +/-5%
• Sound Pressure Level: 94dB (407744); 94dB/114dB / +/- 0.5dB (94dB), +/-1dB(114dB)
• Distortion: <2% Total Harmonic Distortion (THD)
• Operating Temperature: 32 to 122deg.F (0to 50deg.C)
• Power Supply: Two Heavey duty, alkaline 9V Battery
• Power consumption: Approx. 10mA DC
• Dimensions: 2.2" diameter x 5.6" long (50x127mm)
• Weight: 0.75 lbs. (340g)