- Class 1
- Suitable for calibration of Class 1 and Class 2 sound level meters and dosimeters with 1/2″ microphones
- 36 months factory warranty
- Type approved
- Robust housing
An acoustic calibrator is a device which produces an acoustic pressure of defined level and frequency. In other words, an acoustic calibrator is a template of acoustic pressure. With the help of such a reference template we can check the accuracy of the measurements performed with the sound level meter and adjust it if a drift error in sensitivity is indicated. The accuracy of acoustic calibrators used for the calibration of the measurement path should match the class of sound level meter. Depending on the instrument’s performance Class 1 or Class 2 calibrators are used.