The GenRad 1565-B is a general-purpose sound-level meter that conforms to both national and international standards, meets all criteria necessary for the noise previsions of the Occupational Safety and Health Act (OSHA) and includes features found in more cumbersome sound-level meters. This sound-level meter is also approved for use in gassy coal mines by the bureau of mines.
Sound Level: 40 to 140 dB re 20 µN/m2
Weighting: A, B, and C. Conforms to ANSI S1, 4-1971 Type 2 and IEC651.
Meter: rms response with fast and slow speeds.
Input: MICROPHONE: Lead-zirconate-titanate ceramic.
Power: Two 9V alkaline batteries (NEDA 1604AC) supplied, provide ~50 hours of operation
