Lutron SL-4010 Sound Level Meter 
Noise Meter, DB Meter, Sound Level meter 
Model: SL-4010 
Lutron - Taiwan 
 
FEATURES
Large LCD display, easy to read.
Characteristic of ” A ” frequency weighting network are designed to meet IEC 61672 class 2.
” Fast ” time weighting characteristic mode.
Build in adj. VR is available for easy calibration.
Condenser microphone for high accuracy & long-term stability.
Hold function to freeze the display value.
Warning indicator for over and under range.
LCD display for low power consumption & clear read-out even in bright ambient light condition.
Used the durable, long-lasting components, including a strong, light weight ABS-plastic housing case.
Small and light weight design allow one hand operation.
Low battery indicator.
High quality with economical cost.