Calibrates and verifies Sound Level Meter operation
1kHz sine wave at 94dB/114dB is generated to an accuracy of 5% (frequency) and and �0.5dB (94dB)/�1.0dB (114dB)
LED indicator lights up when power is on
Level position to select 94dB or 114dB
For use on Sound Level Meters with 0.5 Inch or 1.0 Inch microphones
Durable die-cast, aluminum housing
Specifications
Power consumption Approx. 10mA DC
Distortion % Total Harmonic Distortion (THD)
Accuracy �5% �0.5dB (94dB), �1dB (114dB)
Noise Level 94dB/114dB
Weight 0.75 lbs. (340g)
Frequency 1000 Hz
Operating temperature 32 to 122�F (0 to 50�C)
Power supply Two Heavy duty, alkaline 9V Battery
Dimensions 2.2 diameter x 5.6in long (50 x 127mm)