Extech 407780 Digital Integrating Sound Level Meter with Datalogging

Extech 407780 Integrating Sound Level Datalogger features: Leq and SEL measurements with built-in datalogger and PC interface; Meets ANSI and IEC 651/804 Type 2 standards; Datalogging function records up to 32,000 records; Programmable integrating time; Real time calendar/clock; Linearity over wide range (100dB); Display modes: SPL, SEL, Lmax/Lmin, and Leq.