SM90 class 1 measuring instrument
from Bedrock

The Bedrock SM90 is a versatile class 1/ type 1 acoustic measuring instrument, suitable for a wide variety of applications. With its high-quality 1/2″ prepolarized microphone capsule, it is the instrument of choice whenever accurate and reliable acoustic measurements are required. The Bedrock SM90 conforms with class 1 requirements as a Sound Level Meter (IEC 616272), but also offers a variety of other functions:

Functionality

• Class 1 / Type 1 sound level meter (fast, slow, A/C.Z-weighting, Leq) conforming to IEC-61672 class 1, ANSI S1.4 Type 1.
• STIPA measuring (quick screening mode, pro mode)
• Real Time Analyzer (1/3 and 1/1 octave)
• FFT analyzer (detailed frequency analysis up to 32768 lines)
• RT60 measuring (reverberation times: T20/T30/EDT).
• Calibrated audio recording
• Leq long-term logging  and averaging
• Audio oscilloscope
• USB audio device mode – calibrated audio for your PC-based software applications
• More functionality will be added through free future firmware upgrades.