Precision Class 1 Sound Level Meter with SD Card Data Recorder

The Lutron SL-4036SD is a Class 1 precision sound level meter. It can measure both sound pressure level (SPL) and equivalent continuous sound level (Leq.). The meter an auto range between 30 to 130 decibels, and there are two manual ranges that can be set: 30 to 80 decibels or 80 to 130 decibels. You can also set either A or C frequency weighting. This sound level meter has a built-in SD card data logger. Simply slot the SD card into your laptop or PC and analyse the data in a spreadsheet. There is no need for any additional specialised software.