Product Description
Real Time Octave Band Analyzer Extech 407790A with NIST Certificate
This model ships with a NIST-traceable calibration certificate (Extech part 407790A-NIST).
Extech’s Type 2 Integrating Sound Level Meter with Octave and 1/3 Octave Band Real Time is displayed on a large 3.5" 320x240 TFT color backlit LCD.