Features & Applications:

The Sper Scientific Acoustical Calibrator is a portable device that can be used to calibrate all Sper Scientific digital sound meters and features a built in battery check. The Acoustical Calibrator works with any sound meter that is equipped with a 1" or 1/2" microphone. The unit comes in a convenient carry case.

Features:

• Operates at a frequency of 1KHz ±4% and with an accuracy of ±0.5 dB.
• Built in battery check.
• Easily portable for field use.
• Includes carrying case, adaptors for 1/2" and 1" microphones, instructions and a 9 volt battery.

Spec Summary: