Extech 407790A Sound Level Calibrator, ±1.5 dB Accuracy, 0.52in Microphone

The FLIR Real Time Octave Band Analyzer is designed for real-time analysis of noise from various sources such as machinery or vehicles. It features a large 3.5" TFT color backlit LCD display and offers a wide measurement range in 5 different ranges. With optional microphone extension cable for remote measurements, the analyzer stores readings on a microSD card and comes complete with various accessories for ease of use.

Analog AC/DC recorder output for versatile connectivity
Real time clock with display of Year, Month, Day, Hour, Minute and Second
A, C and Z weighting with Fast or Slow response for accurate readings
Meets ANSI and IEC Type 2 standards for reliability and accuracy