Two products from Quest Technologies are available for the evaluation and certification of speech intelligibility through fire alarm, mass notification, and other PA systems. The Verifier is available as a standalone speech intelligibility meter. The Quest SoundPro Integrating Sound Level Meter models SE and DL feature the ability to measure and report speech intelligibility in STI-PA and CIS formats. Acoustic Spectral Curves are also included with the speech intelligibility package on the SoundPro models SE and DL. Acoustic Spectral Curves are a way to evaluate the quality of noise in buildings. The Sound Curve options support captured, NC, PNC, NCB, NR, and RC curves. Price: N/A. For more information, contact Quest Technologies at 262-567-9157 or at www.Quest-Technologies.com.