Lutron SL-4023SD [SL-4023SD] Sound Level Meter w/ Datalogger

Lutron SL-4023SD SOUND LEVEL METER with SD CARD DATA RECORDER marks a step forward for you into the field of precision measurement. Although this METER is a complex and delicate instrument, its durable structure will allow many years of use if proper operating techniques are developed. Please read the following instructions carefully and always keep this manual within easy reach.