Sound Meter Decibel Level Calibrator Calibration 114dB / 94dB 104dB for Meters

Calibration frequency at 1K Hz with Sound Pressure Level 94dB / 104dB / 114dB. Easy One handed operation with Vivid LED display with stability and low power indicator. Fit for all sound level meters with microphone head mechanical compliant with IEC 61094-1 or IEC 61094-4 in a 1/2"(13.2mm) microphone size Lightweight and portable that you can carry it wherever you go. You can put it into your pocket or handbag, or even hide it in your sleeves. Generates stable acoustic signal at a controlled frequency and amplitude to verify the accuracy of your sound level meter