Extech 407780a: Integrating Sound Level Datalogger With Usb

The 407780A is an integrating sound level meter with USB. The meter takes Leq and SEL measurements with A and C frequency weighting options. The meter has a built in datalogger that records up to 32,000 records and PC interface to easily access your logged information. Its 4 digit multifunction LCD has an analog bargraph and digital reading. With the 407780A you can program integration times, utilize impulse, fast or slow response settings and benefit from alarm features. Complete with windscreen, adjustment screwdriver, USB cable, Windows compatible software, battery, one year warranty and case.4-digit multifunction LCD with analog bargraphPrecise linearity over wide range (100dB)Display modes: SPL, SPL MIN/MAX, SEL, and LeqProgrammable integrating timeA and C Frequency weightingImpulse/Fast/Slow response settingsDatalogging function records up to 32,000 recordsReal time calendar/clockAnalog and alarm output features can be used to connect with Frequency analyzers, chart recorders, external dataloggers, and sound level alarmsBuilt-in USB interface with included Windows