Accurate Sound Level Meter LMSDM-A10

Microphone : Φ 12.7 mm (1/2) test condenser microphone
Frequency weighting : A, C, and Lin (Linear)
Range : 25 dB to 130dB (A)
Range control : Manual, three gears, linear range > 60 dB

Sound Level Meter LMSDM-A11

Standards : IEC 651.2, ANSI 1.4.2
Parameters : Lp-Sound Level
Measured Leq : Equivalent Continuous a sound Level
Measured Lmax : Maximum Sound Level