Sound Level Meter Calibrator, Precise Decibel Meter Calibrator with 3 Calibration Level 114dB & 94dB & 104dB, Professional Sound Pressure Level (SPL) Calibrator for Sound Level Meters

Worked great! Dosimeter fit right in and it calibrated with ease. I am confident the sound was correct as I had two units to compare.

Seems to work well - how do you calibrate the calibrator? My new sound meter checks out with the db levels nominally output by this device.

Equipo sencillo pero operativo para mi necesidad. Hay que probarlo en campo pero se ve adecuado a lo que necesitamos!

Upon first power up, the unit will cycle through the three dB level settings multiple times before it is ready. Just let it do its thing, and then you will have an accurate reading. Upon changing the dB level it takes a few seconds for the unit to calibrate itself to the new dB level, but I have found the results to be very accurate. I love that this unit takes 2 AA batteries rather than the AAA that other testers use. Very happy with the product!

Accuracy compares well with 2 other calibrators I have. The 94,104,114 output ranges are very useful for my application. When calibrating mics make sure the mic fits the cavity well. I used 'blue' low sticky tape wrapped around mic to ensure good seal. Great product at great price.

I bought this for the FOH RTA / Level mic in one of our auditoriums. It seems to work, but I have no access to make comparison to a high dollar calibrator. It seems consistent to itself, and from that we can make sure our room's levels are remaining relatively the same show to show.

Works Great !!!!

this is a good reference standard to test and verify many different microphones’ output so i know where to set levels and add pads or preamps. if it had adapters for different mic diameters i would have rated 5 stars