Overview Reviews Product Description This sound calibrator generates a stable acoustic signal at a controlled frequency and amplitude to verify the accuracy of your sound level meter. The R8090 is compatible with all 1/2" diameter microphones. Generates stable acoustic signal at a controlled frequency and amplitude to verify sound level meter accuracy Accommodates sound meters with 1/2" diameter microphones Simply place calibrator on microphone, turn on and adjust your sound level meter Complies with IEC 60942 Class 2 Reed Instruments Catalog R8090 Datasheet Product Videos Custom Field Product Reviews Write a Review Write a Review × Reed Instruments Sound Level Calibrator R8090 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *