Lutron SL-4010 [SL-4010] Sound Level Meter

Lutron weighting characteristic mode, Hold function to freeze the display value, Small and light weight design allow one hand operation, * Condenser microphone for high accuracy & long-term stability, Build in adj. VR is available for easy calibration, Used the durable, long-lasting components, including a strong, light weight ABS-plastic housing case, Low battery indicator