LUTRON, 94 dB & 114dB Sound Calibrator.

Model : SC-942

* Useful tool to calibrate the Sound Level meter precisely.
* Frequency : 1000 Hz ± 5 % .
* Suitable Microphone Type : 0.5 inch or 1 inch microphone.
* Power : 2 PCs DC 9V batteres.

Sound Pressure Level 94 dB range 94 dB ± 0.75 dB.
114 dB range 114 dB ± 0.9 dB.
Suitable Microphone Type 0.5 inch or 1 inch microphone.
Total harmonic distortion 94 dB range ± 2 % .114 dB range ± 5 % .
Power Current Approx. DC 7 mA.
Dimension Round 50 mm dia. x 82 mm.
Weight ( including batteries ) Approx. 350 g/ 0.77 LB.