Extech 407732-KIT Type 2 Sound Meter Kit

This kit includes the 407732 sound level meter (a dual-range device covering approximately 35–100 dB in the low range and 65–130 dB in the high range) and the 407722 calibrator (producing a 1 kHz sine wave at ~94 dB or 114 dB) mounted together in a hard-carrying case along with a windscreen for the microphone, calibration screwdriver, 9 V battery and other accessories. The meter itself meets ANSI and IEC Type 2 accuracy requirements (basic accuracy around ±1.5 dB), supports selectable A & C frequency weightings, Fast/Slow response times, back-lit LCD display for field readability, Data-Hold and Max-Hold functions for freezing or capturing maximum readings. The calibrator ensures field verification of the meter’s performance, allowing users to check the instrument on site rather than sending it out for calibration. The hard case holds all parts securely for transport and field work. Applications include workplace noise exposure surveys, equipment installation checks, community noise measurement, and general acoustic monitoring tasks.

Features

• Dual measurement ranges: ~35 to 100 dB (Low) and ~65 to 130 dB (High), offering flexibility across quiet and louder environments.

• Type 2 accuracy (approximately ±1.5 dB) compliant with ANSI/IEC standards for general-purpose sound level measurements.

• Selectable frequency weighting options (A & C) and time weighting (Fast/Slow) to adapt to different measurement standards and noise types.

• Data-Hold and Max-Hold functions to freeze the current reading or capture the maximum measured level, useful for peak monitoring.

• Back-lit digital LCD display (2000-count resolution) with bar-graph for visibility in dim lighting or field conditions.

Includes

• Plastic carrying case for meter
• Calibrator.