
Noise Meter, with USB Interface Data Storage, Sound Level Meter (SL4202). IEC 651 & ANSI S1.4 Compliance: Designed according to International Electrician Committee Standard IEC 651 TYPE 2 and ANSI S1.4 TYPE 2. Wide Measurement Range: Wild Measurement Range covers 30-130dB with three specific ranges for different sound levels. USB Data Storage Interface: Features USB interface for data storage with capacity of 60000 samples. Dual Frequency Weighting: Supports A and C frequency weighting for general measurements and low-frequency content checking. Large LCD Display: Equipped with 4-digit LCD screen with 2 times/sec update rate and bar graph indication. Maximum Value Hold Function: Locks up the maximum reading with MAX hold function for accurate peak measurement. Flexible Output Options: AC & DC analogy signal output available for connecting to frequency analyzers and recorders.