![Bedrock SM30, sound level meter, type II, class 2, fft, RTA, reverberation time measurement, octaves, third octaves Bedrock SM30, sound level meter, type II, class 2, fft, RTA, reverberation time measurement, octaves, third octaves](https://www.acousticals.org/assets/images/Bedrock%20SM30.png)
Bedrock SM30, sound level meter, type II, class 2, fft, RTA, reverberation time measurement, octaves, third octaves
The Bedrock SM50 is a universal, easy to use speech intelligibility tester for your fire safety system. It was designed from the ground up by the... | By SDi Specialized Fire Products
![Sound Level Meter for STI-PA index verification for voice actuated fire alarms in energency 3M Verifier STIPA voice alarms vocal Sound Level Meter for STI-PA index verification for voice actuated fire alarms in energency 3M Verifier STIPA voice alarms vocal](http://www.distek.ro/client/images/1382268433+Sonometru-pentru-verificare-index-STI-PA-alarme-incendiu-comunicare-in-masa-cazuri-de-urgenta-3M-Verifier-STIPA.jpg.medium.jpg)