The LRS-03 sound level logger-limiter measures, records and limits the sound pressure level of the room where it is installed. The unit consists of a linear attenuator and an averaging-integrating sensor developed through technology applied to CESVA sound level meters.

The attenuator automatically corrects up to 40 dB so that the SPL level measured by the sensor does not exceed the maximum programmed.

The acoustic pressure of the room, the automatic attenuation level, date, incidents and mode of operation are permanently indicated on the screen.

The LRS-03 has a permanent memory to store the programming information and data obtained during the past 60 days, even when disconnected from the electricity supply. There is also a battery available to continue storing information for over 3 days without connection to AC power.